SCIENTIFIC ABSTRACT LAZAR, L. - LAZAR, M.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000928910009-3
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: March 13, 2001
• Sequence Number: 9
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

DIOSI, P.; HENTZIU, V.; BIRT, E.; LAZAR, L.; MITREA, I.
Studies on the infection of parturient women with pathogenic staphylo.-
cocci by the genital route and on the transmission of the infection
to fetuses during labor. -T. hyg. epidem., Praha 5 no.4:423-430 161,
1. Centre dlHygiene, Brasov.
(STAPHYLOCOCCAL INFECTION in pregn)
(LABOR compl) (INFANT NEWBORN infect)

rb DIOSI, P.; SIMIONESCU, V.; HENTZIU, V.; LAZAR, L.; SOIU, J.; COMPANETZ, V.;
RUSU, G.
A water-borne epidemic of Shigella boydi dysenterY in the Barsa Region
(Burzenland). J. hyg. epidem., Praha 5 n0-1:93-96 161.
(DYSENTERY BACILLARY epidemiol)

GALEA, Gh., conf.; BUCUR, Gh., dr.; PETRESCU, R., dr.; IAMANDI, I., dr.;
LAZAR, L., dr.; POPESCU, A., chim.
Changes in some serum lipids in chronic hepatitis and in hepatic
cirrhosis. Med. intern. 15 no.6.--6?9-685 Je 363.
1. Lucrare efectuata in Clinica medicala, Spitalu-1 "Brincovenesc".
(HEPATITIS) (LIM CIRRHOSIS)
(BLOOD LIPIDS) (BLOOD CHOLESTEROL)
(LIPOPROTEINSS) (BLOOD PROTEIN ELECTROPHORESIS)

GALEA, Gh,, conf,; HOANCA, Oo. dr.; LAZAR, L.., dr.; DEMO, A.y dr.
Osler-Rendu disease and hepatic cirrhosis. Mod. intern. 15
no.8:1009-1016 Ag 163-
1. Lucrare efectuata in Clinics, medicala a Spitalului
nBrincovenesc" , I.M.F., Bucuresti (director: prof. R. Brauner).
(ANGIMIATOSIS) (LIVER CIRRHOSIS)

DIOSIJI P.; HETITIF, V.; BIRT, E.; LAZAR, L.; MREA, I.
t
Research on the contamination of the parturient with pathogen staphylo-
cocci by way of the genitals and thransmission of the infection to the
fetus during labor. MicrobioloSia (Bucur) 6 no.1:64 Ja-F 161.

ni 17
LZ
CE !.a r Lil s- C:
4 Uri - tit)

LAZAR, L.
New method of coloration of the myelin sheath, p. 1789.
Academia Republicii Populare Romine. COMUNICARILE. Pucuresti. Vol. 5,
no. 12, Dec. 1955
So. East Europear Accessions List Vol. 5, No. 9 September, 1956

MROS, Tibor; XOVAGS, Indre; HODY, Jeno: L UAR, Issilo
Changes in protein fractions of the blood following partial
excision of the cerebral cortex and in lesions of certain
regions of the central nervous system (hypothalamus, reticular
formation). (Data on the problem of the regulation of protein
metabolism by the central nervous system). Preliminary communica-
tion. Ideg.azemle 12 no.10:294-300 0 '59.
1. A Roman Hapkoztarsasag Akademiaja KarosvaBarhelyi (Tirff~-
Hures) Kutatoallomasa Idegazovettani Laboratoriumanak (Vezeto:
Dr. Maros Tibor eloado-tanar) es Biokemiai Laboratoriumanak
(Vezeto: Dr. Kovacs BrAre eloado-tanar) kozlemenye.
(BLOCD PROTEINS)
(CIO RA CORM p ",Jol)
(HYPOTHUMUS phyaiol)
(BRLIN STEM physiol)

MAROS,, Tiberiu; KOVACS, Andrei; MODI, Eugen; LAZAR, Ladislau
Changes in the protein fractions of the blood consequent upon partial
decortication and injury of nerv structures in the brain stem. Rumanian
M Rev. no.ltl82-185 Ja-Mr 161.
1. The Chair of Human Anatomy and Surgical Medicine (Head of the team:
Assist. Prof. Tiberiu Maros) and the Chair of Biological Chemistry
(Head of the team; Assist. Prof. Andrei Kovacs) of the Medicopharmaceutical
Institute, Tg. Mures).
(BRAIN STEN physiology) (BLOOD PROTEINS)

MAROSH, T. [fTaroq, To 1; -.~ ~AR, L._. (go Tyrgu-Muresh)
Effect of largactil on the structure of the myelin sheaths of the
peripheral nerves. Arkh.pat. no.7:60-62 1620 OTIRA 15:9)
1. Filial Akademii nauk Rumynskoy Varodnoy Respubliki (diro -
akad. Do Mishkolltoi) go Tyrgu-Maresh., R=qniya.
(CHLORPROMAZIM) (MMVES, PERIPMU)

LAZAR, Ladislau; MAROS, Tiberiu
Contribution to the functional significance of in the incisures of
Schmidt-Lantermann. Rev. sci. med. 7 no.1/2:51-54 162.
(MIELIN SHEATH) (NEURolis)

MAROS, T.; LiZAR, L-* FORICA, Mm.
Thq-action, of some drugs (hyaluronic acid, hyaluroniclase, cortisone)
on lesions of the peripheral nerves in allergic encephalitis. Rev.
adi. mode 7 no.3A:157-162 162.
(PERIPHERAL NERVE DISEASES) (MYELIN SHEATH)
(ENCEPHALITIS) (ALLERGY) (HYALURONIC ACID)
(HYALURONIDASE) (CORTISONE)

-LAZAR, L.; MAROS, T.
Effect of temperature on the myelin sheath of the peripheral nerves.
Acta morph. acad. sci. hung. 11 no.3:319-325 162.
1. Nervenhistologisches Laboratorium (Leiter: Prof. Dr. D.Miskolczy)
der Forschungsstation der Akademie der Rumanischen Volksrepublik,
Tirgu-Mures.
(PERIPHERAL NERVES) (M,-AT) (COLD)

-
The treatment of ti.:)ber after dr-yire nnl~, durinr- processin- .
p. 63 FAIPAR) l'udaT)est,, Hunrlary Vol. 7 no 2 June 1957
SO: L,bnt.h2y Index of Eas;t Diropenn Acessions (AE'EI) Vol. 6,, no 11. November 1957

LAZAR, 7
Summary of experiences with the implements used in furniture-industry plants.
p.71
FAIPAR. (Faipari Tudomanyos Egyesulet)
Budapest, Hungary
Vol. 9, no.3, Mai- 1959
Monthly List of East European Accessions (LEAI) LC., Vol. 9, no.7, July 1959
Uncl.

DALOCSks, Gabor,, dr.., a muszaki tudomanyok kandidatusa; LAZARLaszlo,~ okleveles
gepessmernok - ___ _
Newer requirements for characterizing the qu&lity-of wood substituUng
materials. Faipar 10 no-10:301-305 0 160. . "
1. "Faiparl-I szerkeszt,) bizottsagi tagja (for Lazar).
11

BARIAI,, Ervin., )kleveles erdomernok; I-AZAR, Laszlo., okleveles
gepes=arnok I
Research in the thermal pressing of chip pbards. Faipar 10
no.9:2(2-272 S 160.
1. Faf,.Pari Kutatointeze"', as nFaipar" szerkeszto bizottsagi
tagja.

IAZAR IaszlO gepeszmernok; DALOCSAI Gabor, a muszaki tudomanyok
kandidatusa
Edge durability examination in the process of cutting with
special regard to Hungarian-made chip boards. Faipar 11 no.12:357-
367 D 159.i
1. Faipari Kutato Intezet. 2. "Faipar" szerkeszto bizottsagi
tagja (for IazarY.

LAZAR,, Lazzlo,,-ppesmemok
Experiences with the training of wood Industry engineers. Faipftr
13 no*2:45-48.F 163.
1. OFaiparI2 azerkeszto bizottsagi tagja.

LAZAR., Laszlo
Cantingent of engineers and ta-ehnicians in the wo(A- and woc-dworking
industries and the qpeatiotis relating to the fulf illment of long-
range demands. Faipar 32 no.8.225-,230 Ag 16-1.
1. ItFaipar" szerkeszto bizottsagi tagja.

LAZAR, Laszlo; TOKAY, Istvan
The situation and tasks of tool supply in the wood industry.
Faipar 12 no. 2:48-51 F 162.
1. "Faipar" szerkeszto bizottsagi tagja (for lazar),

LAZAR, Laszlo
W,Jdd fiber.boards as building materials and experiences in the field
of their application. Magy ep ipar 12 no.11/12:526-530 163.

ROKA, Pal; FOLDESI) Erno (Gyor); RIEPERGER, Laszlo; SEY, Dezso
(9,yor); BALAZS., Jozsef (Debrecen); GFDSZ, Istvan (Szekesfehervar);
ak, Janos )Szeged); BODOGH, Istvan; DAY-7SA, Gabor, dr.;
'LAZAR. Laszlo; BAKOS, Karoly., fomernok (Buaapez;t); FABIAN,
Laszlo, nyugdijas mernok; SZEP, Jozsef
Report on the Executive Committee session of the Scientific
Association of the Wood Industry in Gyor. Faipar 14 no.6:
161-163 Je 164.
1. President Scientific Association of the Wood Industry
(for Rokai.
2. Deputy Head, Wood industry Research Institute (for Daloesa).
3. Head., Committee on Education, Scientific Association of
the Wood Industry (for Lazar).

--A-, - -
- - ---
I ,
_ 7
L p
J~ I
1, 7,2,) k L - P)

NICOLAUJ., prof. [deceased); GHITA, N., dr.; OLARD-UNGUIMOU, Ana, dr.;
DGNOIJAN, Silvia, dr.; UZAR, Lucia, dr.; SERBAIFESCU, M-, d--.
Aspects of malignant reticulloses in children. Pediatria (Ducur.)
13 no-5:447-457 S-0 164.
1. Lucrare efectuata in Clinica do pediatrie a Spitalului clinic
"Fundeni".

LAZAR. 11.
Amateur transmitters for the 3. 5 , 7114 M&. p. 108. RADIOAXATER. (Savez
radioamatera Jugoslavije) Beograd. Vol. 10, No. 4, Apr- 1956.
SOURCE: East European Accessions List, (EFAL) Library of C-~ngress,
Vol 5. No. 8. Aug. 1956.

LAZAR, M
A'-RICULTURE
Periodical: STUDII SI CMCETARI STIINTIFICE. SERIA STIINTE AGRICOLE
Vol. 4 no. 1/2.. Jan./June 1957
LAZAR, M. Cultivation of maize by simple transplantation and the
modifications which appeared in the transplanted maize. p. 139
Monthly List of East European Accessions (FEAI),, W., Vol. 8, No. 3j,
March 1959, Unclass;

Chemical and biochemicai ress~rch on vegetable produce. Pt- 3.
Studii, chin Tizigoara 9 no.3/4053-~359 JI-D 162.

LAZAR, M.; ANDERCA) C.,
----------
Development of pr9duction forces and increase of the income of the
Ortisoars. Collective Farms, Banat region. Studii agr Timisoara 9
no.3/4:355-368 Jl-D 162.

GLUHOVSCHI., N.; LkZARj St.; NAFORNITA, M-; IAZAB,-_Ms
Carotene-deficient feed in gestAting cows, a determining factor of
~he morbidity and mortality of newborn calves. Studii 4gr Timisoara
9 no.3/4:297-3i6 J1-D 162.

HASTASE, Gh., Prof.; SPEUNTA, Gh., dr.: GARNIOL, M., dr.; WAR, M., dr.;
CAHANM, G., dr., RaCUL-ESCU, D., dr.
Studies of some serum antihyaluronidases In akin cancer.
Med. int., Bucur. 8 no.2?135-v240 Apr-MaY 56.
1. Lucrare facuta in clinica demato-sifiligrafica, Iasi.
(HYALURONIDASE. antagonists
In blood of akin cancer patients)
(SKIN NMPLASMS, blood in
antihyaluronidases)

2 19 /2 /1)--
VAASTASB, Gh.; SPERANJA, Gh.; CARITIOL, M.; IAZAR, M.; CA.HM, G.; MARCUIMCU, D.
Investigations on certain seric anti~hyaluronidases during cancer of
the skin. Rwmnian M. Rev. 1 no.2:73-77 Apr-Jane 57.
(SKIN NEOPIASMS, blood in
hyaluronidsise antag.
(HYAIIJRONIDASN, in blood
antag.'in cancer of skin)

NICOULU,St.G. acad.; AMM.A.; AIMUM,I.; IAZAR,M.
Considerations in connexion with our experience concerning
Candida infections. A clinical,mycological, and therapeutic
study. Rumnian M. Rev. 3 no.4:43-44 O-D 159.
(MOITILIASIS)

NASTASE., Gh., prof.; CARNIOL, M.i-LAZAR, M.; LEIBOVICI, M.
Investigation6 on the capillarotoxic potency of blood serum in various
dermatoses. Rumanian M Rev. no.4:59-62 O-D 160.
(SKDI diseases) (SERODIAGNOSIS)

POENARU, Elena; ESRIG, Mira; LAZAR, M.; LASCO, N.; KRANZI)ORF, If.
Contribution to the study of tetanus toxoid adsorbed on a
mineral mipport, with or without provioua purification. 1.
Arch. roum.path. exp. inicrobiol. 23 no. 3:667-674 S 163.
1. Laboratoire du Tetanos (for Peonaru, Esrig, Lazar, Lasco).
2, Laboratoire pour la 11iii-if'icat'lon des antigenes (for
Kranzdorf). Travail de 111nntlDut "Dr. I. Cnntaciizino.",
Bucare3t.

LAZAR.M.; RADSEL-MEDVESCEK, A.; KOPLER,P.; SUEAC,M.
y center of the Ljubljana Infectious Clinic. Review
Respiratox-
of its activities from the establishment to the present time.
Zdrav. vestn. 33 no.10:287-294 164
1. Infekoijska klinika medicinske fakultete v Ljubljani
(Predstojni'k: prof. dr. M. Bedjanic).

p TOPALA, N.;
j"TARI
ta
tion of the magmett-c
7 rc,. 147-
in-1--inity Of g-,-Lln85L Plg5, )tLidii S.
51 ?65.
-111nal
1. r1lip-2 r of
and the Cantarniztnn institutlPs,

LAZAR, 1-1.
"Plastic materials containing fluorine." Technicka Praca, Eratislava, Vol. 6, L1110. 1,
Jan. 10,54, P. 49.
SO: Eastern European Accessions List, Vol. 3, No. 11, Nov. 1954, L.G.

Czechoolovitkia/Chemical Technology. Chemical Products and Their Application --
Synthetic polymers. Plastics, I-
Abst Journal: Referat Zhur - Xhimiya.. No 2., 1957., 6070
Author: lazar, Milan
Institution: None
Title: Pressureless Polymerization of Trifluorochlorethylene
Original
Publication; Chem. zvesti,, 1956, 10) No 1., 74-77
Abstracti On polymerization of trifluorochlorethylene (I) in an aqueous medium
without the use of pressure (in a manner analogous to the procedure
used with other low boiling monomers) it was found that polymeriza-
tion of I under the aforesaid conditions cannot be carried out. A
procedure is described, for tb-- polymerization of I in pentachlor-
ethane at normal atmospheric pressure and 850, using benzoyl percocide
as a catalyst, which resulted in the formation o f a low molecular
poly-trifluorochlor ethylene.
Card 1/1

VTh f th"nolymerizaiion without
of trifluorochloro"IlIvIene in bloroethang.
pressure o7
A I
-
flEnninf, bst )CIOV. Wall-
740a a-= I -
5
a
M&T =4011. Zvesli 10
~
kinetic relations
are described - for tile
.
7P

_1
polymerization (initiatcd by BZ101) ill a SON. of C,rcl ill
.Ey
I
,
iff0b, The metlind ii based oil the measurements of de-
crease of concn. of CACI during the polymerization r6c-
tion. The "ponent of the dependence of the p,Ayincriza-
'
70-110,
tion speed on the Conca. of the initiator Is 0.2 at
which agrees with the findings ofThamas and O'Shaughricisy
(C.A 48,3771a). The total active energy of thelinlyineri-
zatlo~ Is 26 kcal./mol, and the active energy of tile initiation
process is 30,5 4- 1.5 kcal./mol. The initiation proces.4 Is
caused by the radicals from the soLi., formed during tile
polymerization, and the growth of the polymer chain Is as
usual. The ending of the-growth of the chain causes 2 re-
a
tion
ult
i
e
l
i
i
b
h
f
an
c
s s
m
ous
"ttou o
y, occup
ng
y t
e tern,,l
retardation and by the terruination of recombillt

RM

7
4.
Olnp~tlo~ Of 1~_)nz peiavdn im tentachloro-_
In. the preseric 4nuorocnioroeIRYIPRe. R,
I~Iur (V~-*Umu! us-g';K beirav. Brati~ ava,
R ado and IM
__EwF?,w=Z Tzi
Czech. ).
-The velocity covst5. fif spontanecius: ind induccd decf-T-'lln
of Bt_.O, iu pcntachloroethane (1) at U.7' :E 0,1' and -n the
vrcsc-sce cl trifiuomcblormthylcn~ f1l) at 78.3', 6,13 .. and'-,-'!
Q5.7' 0.1 were de(d. The velocity of the cola! dmorupa~
can.b_- exprezied in the rqumion -dlil/d, - kfij - kiftil,
where f,-,, i.% thq con"m VE nrjol, k.. ii be VOOCity rru~t. of
uniruni. sprmtane(Am decompn., and k, i.; the velocity mmi.
indur--d chain decwnipri. Expunent r - 2, is TE., Irl'.
Cf
ium,ble. The pre:-,ence o' 11 Lncreu~4t- ih~- dccQn.,pn of
of 1. - -6,m ith,,-w
qzf)~, in the soin , In thie pkJr..;~iz_
przes~mm~. C., 11 in s"In. Qj 1, mi;ialcd by BZ~07, the Cf-
of tht! itlitiator i~ 0-158 :!: wra.

LAZA~-, Oj6N
cZECHOsLOVPMA/Chemist.-y of High Molecular Substances.
Abs Jour: Referat. Zh7arnal Xhimiya, No 10o 11053, 34981.
Author : Rudol,' Rado, Milan Laza'r.
Inst ; Not given.
Title : Thermal Deemdation of Polytrichlorofluoroathylene.
Orig Pub: Chem. p"iulmy3l-, 1957, 7, No 8, 457-459.
Abstract: The thermal dissociation of polytrifluorochloroethy-
lene at 3400 under atmospheric pressure was studied
by the method of weigjx'. losses and change of charac-
teristical viscosity dependent of the destruction
duration. A mechanism of chain degradation based
on the aSBU=ption of random initiation by C-C bond
scission is suegested. The chain development con-
sists in splitting off of monomer molecules. The
Card 1/2

t-A -Z/4 R/
CZECHOSLOVAKrA/Chemical Technology - Chemical Products and H-29
Application. Synthetic Polymers. Plastics.
Abs Jour : Ref Zhur - Xhimiya, No 8, 1958, 26999
Author : Lazar Milan Rado Rudolf
Inst
Title : Fluorinated Hydrocarbons and Their Derivatives as
Thermostable Insulating Materials.
Orig Pub : Strojnoelektrotechn. casop.., lq>~, 8, No 1, 54-66
Abstract : A review article concerning current comcepts of the
causes which bring about chemical inertness and thermial
stability of polymeric fluorohydrocarbons and their deri-
vatives. It is noted that the most promising course of
development of new thermostable insulating fluoro-poly-
mers is one of the following: copolymerization of tetra-
fluorethylene and hexafluoropropylene, synthesis of sili-
cones in which organic radicals are substituted by
Card 112
- 83 -

7
CZECHOSLOVAICD-fthemistry of High Molecular Substances.
Abs Jour: Ref~~,rat. Z!Yarnal Khimiya, No 10, 1953.t 34964.
Aut!2,)r :
Rado
Irst Not glvcn.
Title The Un.c 0 -,estdor, of Trifluorochloroethylene Polymerizeticn
in Pe a,-,a ~- -1 oroet-lune.
Orig Pub: Chem. zve8ti, 1957, 11) No 7, 383-389.
Abstract: The polymerization kinetics of trifluorocUoroethy-
lene in p,3ntach-loroethane solution at 70 to 900 was
studied; -Denzoyl peroxide was the initiator. It is
sho;in tl:at the reaction rate rises linearly together
with the mcnomer concentration. The initiation rate
(fol.md by the i-Ohibition method) is determined by
the manomolecular decomposition of the initiator.
It is assumed that tha solvent participates in the
initiation reaction.
Card 1/1

LAZAR, IM1.
MILITARY & 'IUVAL SCIENCES: GF-iERAL
Periodical NASA VEDA. Vol. 5, no. 10, Oct. 1958-
LAZAR, M. International cotiference on hirh-moleciile polymers in llottingham. p. 461.
0
mb. Results of mientific v;ork. P. 462.
Monthly List of Last European Accessioris (EU11) LC, Vol. 8, no. 3, March, 1959. Unci.

COUNTRY
C A ES, G 0 M?
j 01-117 21 7724c
Lazaz,. M. awrl. Yliman, IN.

I'ITLE The Pclymeriza-tion of TrIfluorochloroethylen(13,
InItij.,iLed by r-aja. !I. Effi~ct of Penta-
chi-croethare on the Rdte end Degmae of Polyrafift-
0 -R 1C.- .P11 ~3, t Chem :,vesti, 1.2, No IG,, 1S2-7-6')! (1958)
A B T RU, e~ T T h e -,) o ~k y i-. ~,! r i -,-~ r,, -*(-. AP ) o f t r i "' IL -u o !- :) c h 1 o r oiy I c n c
in bulk aiid ii. -~i; tpnpcrl~ktures of 2-' and
j2* ii,3!~ ceen invest-igated. 11 of trifluoro-
it-, pmtacUt~roethaxiij proceada more I
r u p thar in bulk. 1r. the bul'r-~ P, the rate
d:~creaaea wh(:n 'the -rt:iLx;-crat-ave iE-. raisad, a;-,

OFI8 thrOUgil
jttIjjCt7.fjOf; t)lat C11,'Jin -CfOpaj(btj,-,n ;r
OICIlamerl. An increase in th(~ tenpcrature --~n

I . clu'ion P in 'm~ -e
"i e F - 6 -
r-i t . Fror Curmuidcarioy. I see PZhrhim, 1957,
No 13, 44772'.
From aLuthors, au"TrAry
4~ zation.

Distrt J=c Q )-/4E3d
" -F
#.
Wjii of thi advent on the potymerludon MGM of
act
'
h
R
I &W CA;5~0

eiearch
trilluorochl""t
nst. les
a
4ene.
(
JjMtzuavR, vzecn.). J. rosymer,
~-I%e polymerization rate In bulk of:
'was 9
des$ the ect pewn a!
other solve on the pot tion rate was Investi-
gated. The tion expts~ were in in Ni
Ot of The i
atm. to a V oti of 20% of the
values are computed by mesa of sq.
~root relation to th const. initiator concn.. varyin thin
10%. The velocity of polymerization in bulk, estab dati
a
3% H shown to agm with values of Thomas and
1 and 70
60
.
.
~O'Sliaujghnessy(CA.48,3771a). When expreisedinmoles
of monomer cons=td per kg. of the polymerizatlon systeth i

Asa-to than to bulk. A smaller acceleration
effwt and i a
benzene and C%CICFC4,
lfi
ant i
Wt
ff
t
&
d
i
3
b
l
h l
A
h
S
o
c
n
was note
- I
ory e
ec
w
t
4
inet
,
,
y
bew;eae. The Increase in polymerization rate wita tncn=ug

o mid Its law decrea
si show that the rate
tv
Cw
.
t
~
-~aqw ent an moncas. of CFsa and solve
ad the Vt
A
h
L
rt
Itir

~i6&09. ~f vkyliftne chlorld In the presence of
ed v, 6. A. 11rivik Al I nzAr nnd S. KovA6 (SlovenskhL
v
qoki trMUD,-
summary).-The polymtriz~~Ivnof
Any idcne;T~rlde Initiated by BzO3 (1) at 80* In he
e. W I . ,2-trinuoroLrichloroethane (11). CHUS (111).
FIR,~07',,;y~~c1ohexanone (V) was described. Based
on the cphen. o, Pipnomer the effectof Mon the orderolre -
tion is 1, It frond I to 3.5, IV from 2 to 1, and V from I.Satco
0.7. It was detd. that for the conen. of monomer 5.033
molm/Landforthtconamol'18.26 X 10-1mole/Lat"%
the total activatlod energy was 21 kcal./mole for these
solrents. The activation energy for block m i-lation
Of vinylidene chloride was 10.0 kcal./mole, rnlyZ ngree-
W=Lwitlt~~ pA~!Iah,#.data.

D%,r 4E b/lflr,-2c )W
l&,Iwg. 0 trifl,~~
oc oroet Ith vtyl
num d
c 0 dr d.,
U21, WVT91201111ii
MC. 111INN iiati-srava.
-,r1jn.v.1I ba:70(069).-Trifluoro..
419 . Z",""
(1) ', opol'~ncdzed with vinyl chlofide
ne chloride (M) at 60* with Bz*Os as Initia- oFf-
tor; the compa. of the copolymer formed being calcd. from
theCleontent. From the data obtained, the copolymeriza.
tion parameters were cal d. for I + LI (r, - 0.01, rs
2.53). and for I + M (r, ci 0.02, r, - 17.14); with respect
to the unfavorable values for I + 11 the tech. application is
very complicated, and for I + M almost impos3ible. The
course of the change of the copolymer compn. was calcd.
with different initial ratios of 1:11 and with changing
compa., and the result Is priniented. In the form of a dia-
grain. Values were calcil. for Q - 0.013 (0.021). and e
1.0 (1.6) for I with 11 and 111, resp. (The const. Q describes
the "general monomer reactivity" and the const. e takes
account of polar factors influencing copolymerization ') .
J. �ebend&--

?WE I BOOK EXPLOITJLTIOX SOV/49814
c
romolecular chemistry. Moscow.
International symposium On ma
1969.
Xezhdun nimpozLum po makromolokulyarnoy khImI.1 SSSR,
:Zdn

referat
t
d
i
l
6
V
av
o
y.
a
0 g.; dok
onk
I
X _18 iyunya 19
y
l
Sektalya III. ( ar
International Symposium on Macromolecu
Chemistry Hold i n Moscow, June 14-18, 1960; Papers and
section XII. Moscow. lzd-To AN S-',SR' 19601
3ummarica

469 P. 000 copies printed.
L
5
Tsch~ Ed. t P. 3. Kashina.
Sponsoring Agency: The International Union of Pure and Applied
Chemistry. C-losion on Macromolecular Chemistry.
PURPOSE. This book In Intandbd for chemists Interested In poly-
merization reactions and the synthesis of higtt molecular
oompo=ds.
COVERLADE; This is Section III of a VUltivOlume work contain-
Ing papers On KaOrcm0lecular chemistry. 7ne articles In
general deal with the kinetics Of Poly=erizatlon rea-tions,
the synthesis of special-purpobe polymers, e.g., 10-1 ex-
change resinag semiconductor materials, ate., methods or cat-
alYzIng Polymerization reactions, proportion and chenical
interactions or high molecular materiala, and the effects of
varioun factors on polymerization and the degradation or
high molecular compounds. No personalities a-re mentioned.
Refqrencea-given follow the articles.
vomincy. Kh. U., U. N. Musavey and R. S.
?he Radiation Method or Copolymeritrn-g-W-crylonit-Ile
.
__Polystyrene and Parchlo-ovinyl
_
-
1
jjacjc~ 1. V. D1ura
Rarikov 3 R and ~?.N
v3
:n
1
n
Oxyethylatlon or Carbochal netero-
rha' n Polyamides -IA-'
Santo I ~Lnd X. Gal (Hungary). a rting met-hyl MethAdrylate
t
e"
N-
M
ft
f PO
1
O
O
Alcohol Und
the Action of I-RAYS 20-,
r
W
7
LftzlrM-~. R Rado 'and Tu (C zecho a lovarAa)
nL- -LIX11-u
Urnr=ffx-lq
tt~
i
i

-
l
c r7
late Onto Polypro,11-.- and Po
y-
ethylene 214

-
?utorakl 4'1 A and V. n-jjXMt=X (UZSR).
-'
'

erao.
n
f Carbozyl-Containfn
tadlene-Sty-reit
j iu
Rubbers With Polya=Ldes and E-Caprolaotam 224
and Tolong Han-mlng (USSR). Synthesis
)4Aado, R.
(C.-echoslov
and'!X~~ akia). The Role of the
j
ource o tree a ci'ra an Crosslinkins in Polyethylene
Xl,,donov'L--1')'1. A. Tutorskly, and B. A. Dogadkl~ (USSR).
'
-

FF
Orf the
Tr3naro. a Cons a ~arboxyl-CcnYa n adlene-
ring EU
Styrene Rubbers and Their Klzture5 With E-Caprolactam
Under the Action of Gamma Radiation 293
Rosovin, Z. A- V. A. Derevitak SV Chang Wei-
un
u,
,,
4
S

~ng. and Syn a,
.
.,
t,,
.
1EEb=
I"
r:
t
g
;r
a n
", c
Cellulose z1ves Ono Other rolynae ..ldes 302
T (USSR). :nItiation
and I- N- Ktaputs M.1
a;e r_-1 ~0 &-

0 a on ro ad yotheals 0 1.
,
Ic Celluloaes With
Oxides or Nitrogen 310
X. Ya. lershIna, V. S. Iranpva (USSR).
`
-
-
~Iran-a-f-ar-R-XMUG
na
ln
Chalon or Cellulose Molecule% 321
Brerlin --k~ Ye. A. Penakaya, and __Vo~-qv
~uSsR).
-fr-
o &n1..chmI,3 -an bTnZ1t--'Mn 1;.7 C P. erlza-
j,
ti
on During the Freezing of Starch Solutions 334
VomanQv, Fh- ff. B. 1. Aykhcd=h Y~ and U--&Zj_-q2 11).
=c
(US;
_
~
0 1c
11wd1fIcation of the oper-les r cc lui so by Grafting 344

89592
rel m
S/19 61/003/002/010/012
B101YB215
AUTHORS: Rado, R., LaAr, M.
TITLE: Process of cross linking in polyeth3lene caused by peroxide
PERIODICAL: Vysokomolekulyarnyye soyedineniya, vo 3, no, 2, 19619
310-318
TEXT: The authors studied the process of structurization of polyethylere
(PE) by cross linking due to benzoyl peroxide (BP). PE samples containing
BP were produced. Undecomposed BP was iodometrically determined after
heating in an inert atmosphere; benzoic acid formed by decomposition
was alkalimetrically determined; liberated CO 2 was gravimetrically deter-
mined. Cross links were calculated on the basis of A. Charlesby's(Ref. 10,
see below) ratio between solubility and degree of cross linking. Table 1
gives the data of the BP decomposition in PE. Table 2 those on the forma-
tion of cross links. It was concluded that the decomposition of BP is a)
continuous (rate constant k 1), and b) induced after reaction of the
second order (rate constant ki). The following equation holds for the
Card 1/ a

89592
Process of cross linking... S/190/61/003/002/010/012
B101/B215
total decomposition: -d [BP] /dt= ki EBPI + k, [Bp] 2(1). Solution of this
equation and transformation give [BPjt . [BP]. /[A(a+l) - a~ (2), where
A = exp kit: a ki/kl. k 1 and k., and the constant kt were calculated.
The equation X1 (kl/k,)f2-303 log[A(a+l) - a] - k1 tj (3) holds for
continuous decomposition, X 2 = (k 1/11,)f( a+1) - A(a+l)/LA(a+l)- ~
- 2.303 log[A(a+l) - aj/A] (4) for induced decomposition; and for kt:
kt =ARH/f2-303 log[A(a+l) - a] - kjt~ (8). The constants obtained by
calculation are given in Table 4- The calculation of the reaction is
k1 k 2 k
such: BP 2R' ; R' + BP R4 + CO2 + RX; R'+ PH -L4 P*+RH;
k
P* + P, -:A4
k products of deactivation; breaking off of the chain re-
P* + R' 2"
Card 2/8

89592
Process of cross linking... S/19 61/003/002/010/012
B101YB215
action. (PH = polyethylene, RH = benzoic acid). The efficiency of
cross linking depends on the ratio of the reactions P* + R' and P* + P*;
in the first case, it is zero, in the second case k 5P The rate
1 L I I
of structurization is such: d [P-Pj/dt - (kikt -k1. )[Bd (9). By
substituting [13pit in Eq. (2), the following expression is obtained!
[P - Pj- (kt - kl/k i) f2-303 logEA(a + 1) - aj - k1tj (10). The data
calculated and thoseobtained are compared in Fig. 3. Hence, the follow-
ing conclusions are drawn: 1) at low temperatures only a breaking off of
the reaction occurs due to cross linkage among the polymer radicals;
2) the reaction mechanism changes at higher temperatures. Interaction
among primary radicals and the polymer takes place; 3) if the tempera- L/
tures are still higher, the latter reaction prevails. This is explained
by the considerable difference between the activation energy of the in-
dependent BP decomposition and that of the transfer, and also by different
changes in the reaction rates. BP, which did not decompose monomolecular-
ly, is ineffectively lost. The process of transfer determining the
Card 3/8

89592
Process of cross linking... S/19 61/003/002/010/012
B101YB215
number of cross links among the polymer radicals, plays an important
role. The reaction rate also depends on the difficult diffusion of
substances in PE. There are 4 figures, 5 tables, and 19 references:
7 Soviet-bloc and 11 non-Soviet-bloc. The 3 references to English
language publications read as follows: A. Charlesby, Atomics, ~,12,1954;
H. C. Haas, J.Polymer Sci.,.D, 493, 1959; R,. Rado, M. LazAr, J.Polymer Sci.,
A5, 257, 1960.
ASSOCIATION: Scientific Research Institute for Cable and Isolation
Material; Chemical Institute of the Slovakian Academy of
Sciences, Bratislava
SUBMITTED: October 26, 1960
Card 4/8

AUTHORSt
TITLE8
PERIODICAL~
S/--3'~/6 !1005,1006.10-, 8/0'01
3-;Cq
Lazar, M, Pa-I M~~r~-af~~-kq Z. 9 M, ,ke7q M. , Berek, D.
oz,:)r,' ~, at i C)ri CI il - p".) -~P,~ I-- Py I
Vysokf)tGo'lc-kii.'yEi,-ryj,~ vo 39 nov 6j !9619
943 - 94-:
TEXTt One type of polymer )f ar, of
functional grolips which -ir- b,)ur,.] -halrl. The pe -roxides
or. hydrogenprzr3x-,,J;--- may tc- lic,
production )f D-ra"T ThE of
functional hydrogenp~--rr~xldi~, ;,i by mtans of
ozonization rarriad IV fei- liqe-fold
,AU A
pTecipitation of poillpl"."U"I W: 7" v m t -n a r r, d 1 v~-d
,-;olorless in isooctane. T j S t W;i 'g
250C). To at tai n Ft qla i - x i F.- h-e f i n-,~, weri~ ~yiindricai
I or
glass fraMP3. Ata;%4,-
low-boi1j,ng benzirfr- (br,,ijire j~~vured ~rto
Card 1/8

'175
Ozoniz at ion r-f at a r.- yp'-, py_~- F- B ICII, /B21;~
the wafer in the frau-,-- p-: ;~r~j hr- --erm. e-aporated. 32 mg
ozone were formed p~r t .n- tn nnd a flow
rate of 0 -,f* 0.~ -I Til,-
2
the V16003ific-.~, !I) i h c. a m. Sanp-~.- -ir J.-I,f erent
thir,~kness were studiei 'Fi,~. lh~ d~~p,~.,-,ding on
their thicknes2 ove7 thin, ~zfiq lf- Lavle-r ri~vr-,F-r, -)rly 0.1.1 mm
thick fLImq were ta-lf:-i
Pi g. 2 s howe e r- r " e;: f ra t*. n P- rrx,! a: -jmul;* ion.
F,Lc-c. 5 illustrat~,!~ #h~ -. xy , - - , i I a t f.,: ~ i -i h ~- *, w,~. e , 0 - 6 0'-'C
Vlscosi~y "est-a -;n rj-r)~,-ed J r: - -~i n c- , n d 1 .- -.I ~ e a p a t 11 a I
des true ti on a f th,~ mar, T- v~-s ~ `In-~ wsrg~ f,.)inr3 tr b.--- incomple-
tely soluble. Fig- 4 ~'~WPrt-- Ullz and the peroxide
concentration dijring ;)!ij atz, .:,x:da-,J,~;n. Tne corjtenl~ of
insoluble components depenl '- -% time and temperature of ozonization. Ozone
acts as an initlator. Th~- inc-reas,~d reae~tion rate as compared with those
of air or oxygen at low tewperal;uras rv:reases the difference between
oxidation- and diffusi.--n ra-E- ir~ -he ;J-11m. Surfacs:- and thickness
considerably affect the rate ~7-f p;_:-r%xid= a.-~cumulation. As it, is approxi-
Mately proportional to th~: sevlo3re r,Dor !-~f the in--reaec- of the p,:,_rtions
Card 2/8

23 Y 7 5
S/19 61/003/006/078/019
Ozonization of atactic polypropylene BIIOYB208
insoluble af ter ozonizationg the latter repres,~,nt the oxidation initiator.
Their oxidation rate is higher from the beginning of the reaction. They
are probably formed by cross link.Ing of polymer ctlains by peroxide groups,
hydrogen peroxides and polymeric peroxides which are formed particularly
on the film surface, At a oertain temperature a-maximum ~oncviitration
of peroxide oxygen cannot be exceeded at arbitrary oxidation time. (Fig.3).
Contrary to atmospheric oxidation, it does riot decrease in the case of
ozonization, the peroxide decomposition rate being'equal to the formation
rate. This maximum concentration approximately cQrresponds V.) the peroxide
concentration in. the irisolub!-~ parl c-r tile fi.im~, A dynamit_- equLlibrium is
assumed to present in the syst 'E~m bp-Lause cf the destruction of the macro-
molecules. At a larger Bampie tbicknes_,11 ~he maximum peroxide concentration
is attained more slowly. A 10 d'. content of ilisc 7jble frar-tions corresponds
to a surface layer of 0.005,mm -.-;- a Oa I I rnm thick- sample.0 A3 in this
case the formation of iiisoLublf~ fra--,tinns sets in at onre at beginning
ozonization, the maximum -3ncentratJ)'_on in srpa:l -iample,_~ i3 attRined More
rapidly. At higher oxidaton temperatures (390C, 560C) the insoluble
fractions decrease,, Presumably hydr':~genperoxides ars formed at the expense
Card 3/8

2 3775
.I/Iq0'6!/oo;/oo6/oie/o1q
Ozonization of atacti,~ polyprr)jylen,~ B 1 07n 0 6
of the-Tormation of unstable peroxides at equal total amount of peroxide
oxygen,*-as, the latter are exposed to a higher thermal stress.. After 1000 hr
at -room temperature. the hydrogenperoxide c-ontent der. re as es by 20 %,'a 11
peroxidesv however,, are already d-composedg There are 5 figures and
6-references-i 2 Sovieta-bl_-'c arid 4 ron-So,;i qt- bloc. Thp rsff~rence to the
English-language pj)blica!tier~n reads aq followsi Ref. -)t Nat,as J. Polymer
sci-6-, 34, 696v 19c:9.
ASSOCIATIOIT: Chemical Instirut-a of the SloTakian AS, ?rftfislava
SUBMITTEDt December 30,, 11960
Card 4/8

23679
Z/043/61/000/003/001/001
D222/D305
AUTHORS: Rado, Rudolf, and Lazar, Milan, Engineers
TITLE: Cross-linking of polyethylene initiated by
benzoylperoxide (III) - Formation of cross links
PERIODICAL: Chemick4 zvesti, no. 3, 1961, 191 - 197
TEXT: This is a cohtinuation of previous studies on cross-linking
of polyethylene initiated by free radicals originating during
thermal decomposition of benzoylperoxide (R. Rado, M. Lazar, Ref.
1: Chem. zvesti 15, 63 (1961); R. Rado, M. Lazar, Ref. 2: Chem.
zvesti 15, 95 (1961) ). This paper evaluates the chemism of
polyethylene cross linking and'expresses, in terms of formal
kinetics whose relations confirm t~e observed regularities. The
decomposition mechanism of benzoylperoxide r Abstr~actorls note:
In the following referred to as BP~7 is listed in the above ref-
erences and the limited solubility in organic solvents of cross-
linked polyethylene /7Abstractor's note: In the following refer-
red to as PE_7 was used for quantitative determination of the
Card 115

23679
Z/043/61/000/003/001/001
Cross-linking of polyethylene..* D222/D305
cross-linking progmss. The degree of cross-linking and the
quantity of cross-links, obtained at various BP concentrations,
after various periods, and at different temperatures, are tab-
ulated. In analogy with polymer cross-linking initiated by ion-
izing and ultraviolet radiation, it is assumed that BP-initiated
cross-linki also occurs by recombination of polymer radicals:
PEO + PEO ;9PE-PE. However, as distinct from the radiation-init-
lated cross-lifiking, there is no linear relation between the cross-X
link formation and the concentration of the initiator UP). This
is attributable to reactions which reduce the efficiency of the
BP i e induced decomposition and termination (recombination)
betwe;n*th'e BP radical and the polymer radical, thus competing
with the cross-linking reaction itself. These inhibiting reactions
have inverted temperature dependence: the non-effective BP con-
sumption caused by induced decomposition drops, that caused by
R* + PE* recombination rises with increasing temperature. The kin-
etic equation for the cross-linking process can be derived as
follows: The total amount of radicals (PE* and R*), originating
Card 215

2367.9
Z/043/61/000/003/001/001
Cross-linking of polyethylene... D222/D305
7&t; the amount of PE, radicals
during a certain period is 2k, CBP
is given by the amount of liberated benzoic acid (,6.RH); the
amount of Re radicals is given by the difference of these two
values. Since each primary radical which is not transferred to a
polymer radical consumes an equivalent amount of polymer radicals
for its terminazion, the total amount of radicals lost by this
termination is 2(2kj ICBP-I&t -,ORH) and only the remaining amount
of PEO radicals 2(4 RH - ki LBP3,t,~) recombines and serves the
formation cross-links. Since always two PE' radicals are required
to form each cross-link the total amount of originated cross-
links is given by the difference A RH - k1 F-BP.3At. After substi-
tution of the expression given for&RII in equation 7 (Ref. 2),
the equation reads
d CPE PE3
d (kprk i -k, BPJ-6
in which [PE PE-1 is the concentration of produced cross-links,
Card 3/5

23672
Z/043/61/000/003/001/001
Cross-linking of polyethylene... D222/D305
and F_BP_Jt is the concentration of BP at the timet , which can be
calculated by a similar formular as valid for spontaneous decom-
position:
(11 C
I CBM d-& - 1
BP JO A(a+l) a Tj f2-303 log [A(a 4- 1 a3 - kl-tj
in which (kprki - kj) is the portion of effective (spontaneous)
peroxide decomposition, directly initiating the cross-linking.
In the two most extreme cases, the velocity of cross-link forma-
tion will be either Izero (k~rki -_ k ) or equal to the spontaneous
BP decomposition (k k - 2 ). Afler substitution for the expres
sion rBP4and adjusUe~t? relults an equation
[PE - REJ kpr - !0 ~2-303 log ~~(a + 1 a] -kjt~
ki
Card 4/5

23679
z/o43/61/000/003/001/001
Cross-linking of polyethylene... D222/D305
which contains 3 known kinetic constants and expresses the
quantity of cross-link formation depending on the initial BP con-
centration and the reaction time. The calculated values coincide
well with experimental results. There are 2 figures, 2 tables and
12 references: 2 Soviet-bloc, and 10 non-Soviet-bloc. The ref-
erences to the four most recent English-language publications
read as follows: L.D. Moore: J. Polymer. Sci, 20, 94, 137-153
(1956); A. Charlesby: Radiation Research 2, 96-97 (1955); E.J.
Lawton, J.S. Balwit, R.S. Powell: J. Polymer. Sci, 32, 125, 257-
275 (1958)5 An., Brit. Plast. 31, 399 (1958).
ASSOCIATION: Vyzkumny ustav ka*'blov a izolantov-v Bratislave
(Research Institute for Cables a5d Insulators,
Bratislava): Ustav dreva celulozy a umelych
vlakien Slovenskej akade'mie vied v Bratislave
(Institute for Wood Cellulose and Artificial
Fibers, Slovak AS, Bratislava).
SUEMITTED: March 8, 1960
Card 515
V~

RADO P Re
Peroxide-induced cross-linking in polyethylene. Vvookom. ooed,3
no,2010-318 F 161. (MIRA .14:5)
1. Nauchno-iseledovatellokiy institut kabeley i izolyatnionnykh
jiAterialov i Kbimichookiy inatitut Slovatakoy akademii.nauk,
Bratislava.
(Polyethylene) (Bentoyl peroxide)

2316y
2- Z/043/61/000/005/001/001
D217/D303
AUTHOR. Laz&r, Milan
TITLE: Grafting efficiency of organic polymers by chain transfer
reactions
PERIODICAL: Chemick& zvesti, no. 5, 1961, 327-332
TEXT: In the present work an equation is derived for grafting
efficiency for chain transfers from the macro-molecules of the poly-
merizing monomer and initiator radicals onto the back bone polymer
and monomer by considering the kinetic constants of the simultaneously
occuring processes. In its final form the equation has the form
K &
I- + a(1 + dm + rcr-K), (5) where K is equal to
K = '*N + C3111f) + CMM(l +
(I + c00 + MCPO + CMM) and It is the ratio of the rates of polymer
radical disappearance due to their interaction and due to their reaction
Card l/ 3

2jlLY
Z/043/61/000/005/001/001
Grafting efficiency of... D217/D303
with the backbone polymer and monomer and may be expressed as follows
-_ - Idsvp where C = K4 - constant for the
UP-0 Af + GMAI (6) K2
transfer onto the backbone
polymer and CM K*1 - constant for transfer onto the monomer and
e2 = K 3 2
2 1 the Kts denoting velocity constants. The magnitude/i
K2 expresses the ratio of the rate of reactions of the ini-
tiator radicals with the backbone polymer to the rate of their addi-
tion to the monomer presentq From Eq. (5) it follows that the grafting
efficiency is proportional to rS and C and inversely proportional to
(7. and Q - Fx-om pvactical experience it can be said that grafting
efficiency through chain transfer reactions is important for such
backbone polymers, for which the rate of transfer from the macro-
radical onto the polymer is considerably higher than onto the monomer.
Another important fact is that in evaluating the grafting efficiency
Card 2/ 3

21876
ts-' 80)0 Z/043/61/000/006/001/002
D229/D302
AUTHORS: Laz&r, Milan, Engineer and Pavlinec, JiR, Engineer,
Candidate of Sciences
TITLE: Transfer reactions of the polymethylmethacrylate radical
with some solvents
PERIODICAL: Chemickfi zvesti, no. 6, 1961, 428-434
TEXT: Polymerization processes are accompanied by transfer reactions
which cause premature termination of the growth of macroradicals.
These reactions are quantitatively characterized by transfer constants,
the knowledge of which allows the polymerization degree to be predicted
and to illuminate the mechanism of the transfer reaction. This paper
investigates transfer constants of reactions taking place between the
polymethylmethacrylate radical and the solvents n-heptane, isooctane
(2,2,4-trimethylpentane) and esters of the acetic acid. The transfer
constant is expressed by the change of the average polymerization de-
gree P in dependence on the change of concentration of the transfer
Card 1/10

21B76
Z/043/61/000/006/001/002
Transfer reactions of the... D229/D302
agent. The equation expressing this dependence for a polymerization
system in which M is the monomer, S the solvent, and I the initiator,
reads: I C + C ~ + C I + S2 R 2 . The expression C + C I +d.2 R2
0 "! M s M i A A M i M A
will be replaced by the symbol X; magnitudes C M j CS and Ci are transfer
constants for the pertinent agents, expressing the ratio of velocity
constants of the transPr reaction to the velocity constant of the
macroradical growth;cf is the ratio of the velocity constant of the
termination to the square of the velocity constant of the growth; and
R is the polymerization rate. Values for CM = 0.6 1 10-5 and for
d,2 = 141.5 were taken from literature. To prepare pure methylmethacry-
late for the tests, the stabilizer was extracted by gradual shaking with
10% solutions of NaOH, H 2S0 41 K2 CO3and distilled water, and by distilla-
tion of the monomer directly before starting the tests. The polymeriza-
tion was performed in an 8 ml sealed glass ampoule in nitrogen atmosphere
Card 2/10

'2 18 76
Z/043/61/000/006/001/002
Transfer reactions of the... D229/D302
0
at 50 C . It was carried on to a maximum conversion of 7.5% (only in
the case of n-heptane, isooctane, and monomer concentration of less than
7,5 mol/l, the conversion exceeded 10%). The polymer was isolated by
mixing the ampoule content with chloroform and precipitation with an
excess of methanol. The flaky polymer precipitate was dried in vacuum.
The average polymerization degree of the unfractionated polymer in
chloroform solution was log P = 4.24 + 1.257 * log rnj. The intrinsic
viscosity Ell (expressed in I * 9r -1 ) wos determined 17 by measuring the
viscosity of the polymer solution at 25 C in an Ubbelohde viscosimeter
with a flow-time of 304.8 sec for the pure solvent. Transfer constants
of the methylmethacrylate - hydrocarbon reaction are difficult to de-
termine dues to the limited solubility of the polymer in non-polar sol-
vents@ At fl vflues greater than 0.2, anomalities originate in the
course of t e P - X function, and the transfer constant C
can only
8
be determined from the initial course of the function, where the t iend
= 1.8 - 10
is still positive. In this way, transfer constants C
8
-4
were obtained for n-heptane and C 1.2 - 10
for isooctane. The

Card 3/10

21B76
Z/043/61/000/006/001/002
Transfer reactions of the*.* D229/D302
change of the initial course of the polymerization function in mn-
-polar solvent&-can visually be observed with the aid of polymer pre-
cipitation and the increase in the polymerization rate to approximately
4-times the block-polymerization rate, while the Rolymerization rate
in other solvents remains equal. An increase of P and R by increasing
the concentration of the solvent, is connected with a considerable de-
crease in the velocity constant kt for termination. The influence of
the solvent on the change of kt can also be used at lower concentrations
of the transfer agent, even when the polymer precipitation cannot be
visually observed, and can influence the determination of C with other
I s
solvents than hydrocarbons. Experimentally obtained A values for higher
S ratios are lower than those calculated by the function I - X = C S
an effect which could be observed for all solvents at S ratios nearing 1.
IR
Values for at various ~ ratios and calculated transfer constants for
M
Card 4/10

2U76
Z/043/61/000/006/001/00---'
Transfer reactions of the... D229/D302
various solvents are listed in Table 1.
Table 1: Transfer constants Ca for methylmethacrylate pdymerization in
various solvents at 500C and an initiator concentration of 2.06* 10-2
mal/l. (1) ethyl acetate, (2) n-propyl acetate, (3) isopropyl acetate,
(4) n-butyl acetate, (5) isobutyl acetate, (6) secondary-butyl acetate,
(7) tertiarybutyl acetate, (8) isoyetanes (9) n-~eptane. (a) graphical-
ly determined values, (b) constant M = 2.17 * 10- moles/mol.
Card 5/10

WO Pago
T aTqvj
8.0 ell
1
21
0
to'o Z60'0
Wo W5 0
99% z0, I
'91,0 09,5 191'0
Vo Colo L91; EGOIO IWOOVIAdoid-u
sio,o Wi; 9E0'0
Colo .:Gc,z 0
Doll 611
getlo SWE Lotlo,
zVo We 09goo
WO Silo ;g.& 98110
Bl'o opt 1110
Lo,o ttolo
90'0 0

ot lo

ot
(X - cr
'01

eqj jo SUOTIOVDJ Jejouval.
Z;00/TOO/900/000/T9/M,0/Z

21876
Transfer reactions of the ...
Table I contid"
Card 7/10
Z/043/61/000/006/001/002
D229/D302
037 3,44
0:98 5,12 0,79
0 2.39
0 2,32
0 2.33
0,006
0.02 2,30
2.348
0.032 2,378-
0,046 2.335 -
0,0!-,G 2,378 -
n-butylaoetftb) Ojmi 2,482 - 1.3
0.158 2,570 -
0,101 2.635 -
0.2 2.5R5
0,24 2,605,
0,293 2,818
0,355 2,925
0.447 2.830
0,563 3,035

G 0.03 2,59 0,20
0,08 2,71 0.23
itabutylumtAt 0,134 2.89 0.25
0,194 2.94 0.10
0,335 3.4 0.27
0,80 4,93 0,00

Transfer reactions of the ...
.TAle 1 cont'd.
Card 8/10
2-1876
Z/043/61/000/006/001/002
D229/D302
Po kra4ovanio tab. I
RozpdAfadlo 104
X). C'. 104
p

0 2.51 0.21
0,031 2.53 0.14
0.080 2.65 0,17
sek-butylacetAt 0,134 2,87 0.23 0,2
0.194 2,04 0.16
0,335 3.40 0.27
0,80 4.70 0.37
G)
0,03 2,41 0.02
0.08 2,53 0,05
lere-butylacwtAt 0,191 2.99 0,2 t 0.5
0320 3,35 0,22
1 0:840 4.78 0,45
izooktAnd) - - t.2
0
. n.heptdna) 1

2 i876
Z/043/61/000/006/001/002
Transfer reactions of the... D229/D302
Applying the assumption made by M. Lazhr, J. Pavlinec and Z. MaxfLsek
(Ref. 5: Collection, v tlaA (now printing)) that the resulting C 9 is
the su- of partial Ca values of individual groups in the molecule,
partial constantalbr transfer to CH 30 CH2 and CH groups obtain values
-4 -4 -4
of 0.05 0 10 , 0.3 0 10 and 0.65 # 10 The ratio of reactivities
of these C-H bindings (0.1 : I : 4) and C values eatim4ted.according
to the assumption made in Ref. 5; (Op. dit.Y coincide wdll with
actually measured values, considering that not very effective trans-
fer agents of the polymethylmethacrylate chain are involved and that
relative errors inherent in differential calculations are always
rather large. In conclusion , the authors state that the anomaly
observed in the dependence of the polyR erization degree (P) on
changing ratios of solvent to monomer(A)f indicates a decrease of the
termination constant due to the increasing solvent concentration.
There are 2 figures, I table and 5 references: 2 Soviet-bloc and
3 non-Soviet-bloc.
Card 9/10

21876
Z/043/61/000/006/001/002 VX
Transfer reactions of the... D229/D302
ASSOCIATION: U6tav dreva, colulAzy a chemick�ch vlAkien Slovenskej
akad6mie vied v Bratislave (Institute for Wood, Cellu-
losis and Chemical Fibers, Slovak AS, Bratislava).
SUBMITTED: July 4, 1961
Card 10/10

216771, -1.
Z/043/61/000/006/002/002
D229/D302
AUTHORS: Lazfir, Milan, Engineer, Cnndidate of Sciences and Rado,
-Im-aolr, -r"ngineer
TITLE: Cross-linkage of saturated polymers by grafting
PERIODICAL: Chemick& zvesti, no. 6, 1961, 435-440
TEXT: One of the possibilities for cross-linking polymers is grafting
with a monomer. Cross-links produced by grafting have a different
chemical composition from the linear chain. This paper deals with the
theory and calculation of the polymerization degree of grafting, es-
pecially in view of transfer reactions. The expression for the ratio
of cross-linked graft polymer to the total amount of grafted polymer
can be derived from the reaction scheme for grafting, listed by
M. LaAr (Ref. 2: Chem. zvesti 15, 327 (1961)). According to this re-
action scheme, the growth of the branch chains is initiated by transfer
reactions from both the growing macroradical (P.)and initiator radicals
to the basic polymer (Po). To simplify the calculation, it is assum
Card 1/7

21a77
Z/043/61/000/006/002/002
Cross-linkage of saturated... D229/D302
that the first addition of the monomer to the polymer radical (Po.),
the second addition, etc, have the same velocity constants.- Cross-
-linkage by grafting occurs in the termination reaction, but only by
recombination. Disproportionation and transfer reactions compete with
the cross-linkage. The derivation of the proportion of crosB.-Iinked
polymer (fz) is also based on the assumption that the state of free-
radical concentration in the system is atationary. (The concentration
of radicals can be derived from the concentration of reacting components
and the velocity constants of the pertinent reactions). The expression
reads then: f, ' kP,,%
k&P(rPe + kUPo-M + k.Po-I + 2rk^-P~ + dkPo-P.
in which r is the proportion of recombination; and d is the proportion
of disproportionation in the termination CAbstracter's note: Other
symbols not explainea]. After introducing radical concentrations and
adjustment, the function reads:
fz r(l - K)--k , in which the auxiliary
+
Card 2/7

21877
Z/043/61/000/006/002/0()2
Cross-linkage of saturated... D229/D302
symbol K (CPO + C01 +CmM(l + P c~, is the ratio'of extinction
L, ~~, ;
(I + M) (l + 1.) ) (CPO + C+,.,
velocity of polymer radicals (Po. and P.) reacting with each other,.
to the velocity of polymer radicals reacting with the basic polymer
(Po) and the monomer; C and C are transfer constants. Solved for GL.,
"2 M
the equation reads: r VP 21 in which k0.5 k
Ck ~ CPoM -+ C m k3 ; C = k4;
2 2
CM = kL4M; v p is the total velocity for monomer consumption; and P is
2
the ratio of the velocity for initiator radicals reacting with the basic
polymer to that for initiator radicals added to the monomer. The
portion of the cross-linked graft polymer increases at higher ratios
of recombination velocity to total termination velocity and lower
values for K. Cross-linkage reaches a maximum at K = 0 and is zero
at K = 1. The value for f Z also strongly depends on the value for c,:,,
since the cross-linkage requires the transfer which enables the origin
Card 3/7

21B77
Z/043/61/000/006/002/002
Cross.-linkage of saturated..* D229/D302
of polymer radicals Poe; however, the transfer reaction itself com-
petes with the recombination reaction, during which the cross-linkage
takes place. The optimum value forr~, corresponds exactly to the
maximum for fze The dependence of the f value on values foroLand
z
is shown in Fig. 1.
U fz r I I According to the
Fig. 1
Card4/7
as
014
present know-
ledge it can be
expected that P,
values for most
polymers will
be rather low
when initiated
by low-molecular,
initiators. Higher
P values can be
obtained when the
grafting is
2 4 6 8

21677
Z/043/61/000/006/002/002
Cross-linkage of saturated... D229/D302
performed with the aid of polymer hydroperoxides. Under the supposition
that hydroperoxide groups are bound to the polymer to be grafted, that
they are subject to monomolecular decomposition and that the Ho- radi-
cal initiates homopolymerization, while the macroradical initiates
directly the-grafting of the branch chain, a value of P= I is obtained.
Fig. 1. Course of the dependence of Considering a different de-
f onCL. under the assumption that composition mechanism where no
z monomolecular radicals origin-
the transfer to the monomer is ate, obtained valueg will be
negligible and that the recombina- very high. As t example for
tion prevails in the termination crosg-linkage, the authors
reactionB (r = 1, or 0.8 respective- quote the grafting of a hydro-
ly), at 100 (lines I and 2); carbon polymer with styrene.
1 (lines 3 and 4); and (3= 0 In respect to the prevailing
(lines 5 and 6). recombination in the termina-
tion reaction, the cross-
linkage of this monomer seems
possib". However, when 0, crosg-linkage will not take place,
because for most grafted polymers, theckvalues will lie above 10.
Card 5/7

21877
Z/043/61/000/006/002/002
Cross-linkage of saturated... D229/D302
The grafting must therefore be performed with the aid of hydroperoxide.
Under optimum conditions ( A= 1), 30 - 35% of the total grafted mole-
cules will be cross-linked. Since during-the decomposition of the
polymer hydroperoxide according to R - 0 0 H R io RO- + Re + H 0,
2
H
only polymer radicals originate, it should be expected that nearly all
of the originating styrene-grafted polymers will be cross-linked. The
experimental determination of the f z value is more difficult than the
determination of the cross-linking degree of saturated polymers with
direct linkage of linear chains, since it requires the kadirledge of
the average polymerization degree of both the basic polymer and the
cross chains. The difficulty lies in the fact that a cross-linked
polymer does not start loosing its solubility before the average number
of cross-links exceeds 1/4 of the original polymer chains. In conclu-
sion, the authors atate that the cross-linkage obtained by grafting
depends, to a large extent, on three ratios, i.e. the ratio of
Card 6/7

21877
Z/043/61/000/006/002/002
Cross-linkage of saturated... D229/D302
recombination to total termination; the ratio of the termination velo-
city to the sum of velocities of transfer reactions; the ratio of the
velocity of the initiator-radical reaction with the basic polymer to
the velocity of the initiator-radical addition to the monomer. There
are 1 table, 1 figure, and 4 references: two Soviet-bloc and two
non-4Soviet-bloc. The references to English-language publications read
as follows: T.G. Fox and S. Gratch, Ann.-N.Y. Akad. Sci. 57, 367-383
(1953); A. Charlesby, Proc. Roy. Soc. A 222, 542-547.
ASSOCIATION: Ostav drava, celul6zy a chemick~ch vIfikien Slovenskej
akadgmie vied v Bratislava (Institute for Wood, Ceiiu-
losis and Chemical Fibers, Slovak AS, Bratislava)
(Laz&r); V~zkumn~ fistav kfiblov a izolantov v Bratislave
(Institute for Cables and Insulators, Bratislava)(Rado)
SUBMITTED: May 23, 1960
Card 7/7

S/igo/61/003/007/018/021
q 06 1 It" B101/B230
AUTHORS: Manv6sek, Z, Berek, D.., Mic4ko, M_ Lazhr, M., Pavlinec, J.
TITLE: Formation and decomposition of hydroperoxides of atactic
polypropylene
PERIODICALi Vysokomolekulyarnyye soyedineniya, v, 3, no, 7, 1961, 1104
- 1109
TEXT: Reference is made to the fact that grafting of side chains and
thus modification of polymers is possible by formation of macroradicals.,
Such macrnradicals may be formed by decomposition of veroxideE formed
in the ox.,uation of oolymers. The target of the present papeT was there-
fore to study the condir,Lons of the formation and decompQsition of per-
oxides on the example of atacti-c polypropylene, Polypropylene was
purified by repeated precipitation from an alcohol aad isooctane solution
by methanol and heating to 1600C in a nitrogen atmosphere. From a 5 ~~
solution of poiypropylene in isooetane, films 0,.! mm thick were produced
on glass plates and oxidized by heating in air at 90 - '200C Determina-
tion of peroxides took place in nitrogen atmosphere, To the polymer
dissolved in chloroform a saturated acetic acid KI solu7ion was added,
Card -1b

a 4 ~' -el S/190/61/003/007/O!E3/021
Formation and decomposition of.... B101/B230
and the iodine released titrated with hyposulfite. The chan6e in molecular
weight caused by oxidation was determined viscosimetrically in a decalin
solution. Decomposition of peroxides took place at 90 - 1200C in nitrogen
atmosphere in sealed ampul5, A study of the oxidation showed that the
same was depending on the diffusion of oxygen in the fillm. herewith on
the thickness of the film, At rising temperature, cxidation was faster
than the rate of diffusion of 0 2 in the f i Im.. Optimum Cilin thickness
was found to be 0.1 mm~ Fig, 2 shows the kinetic course of oxidation as
a function of reaction time. For the initial phase of the reaction, the
equationj d[ROOH]/dt ~ II.ROOH!' (1) is put down, where '. J-3 the auto*-
catalytic factor, ! -ROOH11 is the concentration of percxides determined
experimentally after termination of time t,, In the subsequent phases of
oxidation is not constant any longer., Th 'e empirical equation- LROOHjt
I fexp (-,'t) - exp(-/~01 ~ [ROOH is quoted.
ini texP( -i3jt) (5)
J, I are constants. For 1000C, and assuming k= 1,078, 0.11,
bx3~, [ROOH] = 0-385, the curve was calculated and drawn into Fig.
Jinit
2 as a dash line. From the linear dependences log = f('/T); log w = f(i/T~
Card 2/5

25 S/190/61/003/007/018/021
Formatton and aecomposition of... B101/B230
where w is the rate of oxidation, the activation, energy of the accumu--
lation of peroxides in the polymer was calculated to be 24 - 25*kcal per
mole. The induction period observed may be re4uced or entirely elimi-..
nated by previous accumulation of peroxides, e. g., by treating the poly-
mer with ozone. It was found that the intrinsib viscosity (and therefore
also the molecular weight) decreases with increasing concentration of
peroxides, regardless to temperature, following the same rules.- Decompo-;
sition of the peroxides in inert atmosphere takes place as a reaction of
second ordei (Fig. 5).' Dependence 1/';ROOH_l - f(T) is a linear function.
Activation energy calculated from the -constant of destruction rate
amounts to 27 kcal per mole. The same value results from the function
.log Itilt *: f(l/T), where t is the time in which maximum concentra-
maxi max
tion'of' peroxides is attained. V. B. Miller and M. B. Neyman are.men-
tioned. There are 7 figures and 5 references: 2 Soviet-bloc and 3 non-
Soviet-bloc. The reference to English-language publication reads as t11 Y'
follows: G. Natta, E. Beati, F. Severini, J. Polymer Sci., JA, 685,,1959..
ASSOCIATION: Chemical Institutes of the Slovakian Academy of Sciences,.
Bratislava
Card )/5

-ven Nallr.03
00"L-Itz"J: CzcchoSlcva!:ia
AcadGr,ic Deereas: E ng r ,C. ','c. /Candidate of Sciences/
instituze of Wood, Cellulose, and Che-mical :-Iibe.i,-s;, S,,..V
tav dz-eva, c 7r
~UL n eluloz.,
a cher.-ickych vla'rken), Bratislava
source: 13rat Jis lava, Nasa Veda, Vol,VIJII, No 9, 19061, PP 536-539.
Datat "Thm I"UtUro Bel=95 tO PIU8tiOS."
GPO 991643

PAVLINETS, I.; IAZAR M. - MANYASEK, Z.
Chemical modification of polypropylene fibers brought
about by grafting methyl mathacrylate. Khim.volok. no.5:21-25
, 62. (MIPA 15:11)
1. KhJ ini cheskiy institiXt Slovatskoy Akademii nnukq
Bratislavap Chekhoslovatskaya Sotsialisticheskays.
Reepublika.
(Textile fibers, Synthetic)
(Propene)
(Methacrylic acid)

38296
31190162100,1100610261026
/ST J9 6 0 13110138
AUTHORS: Lazar, Kliman, N.
TITLE: Pol~,merization of triflucro-chloro-ethylene, initiated by
5--radiation
PERIODICAL: Vysokoinolekulyarnyye soyedineniya, v. 4, no. 6., 1962,
948-952
TEXT: Radiation polymeri7.ation of trifluoro-chloro-ethylene was investigated
(Co 60 ). It was found that the polymerization rate decrea*ed with rioing
temperature. Polymerization was autocatalytic, since the yield of free
radicals is higher during polymer than durinr, monomer irradiation. Poly-
merization was carried out in the presence of hydroquinone, in order to
establish the radical mechanism. Complete inhibition occurred. The
apparently negative activation energy could, therefore, not be explained
by ion mechanium. A polymerization already in course is retarded by the
temperature rise and takes the same course as one which starts at increased
temperature. Once again an induction period appears, which is five to
Card 1/3

6/190/62/004/006/026/026
Polymerization of trifluoro B110/B138
4
eight times hijher at 500C. - This confirms that the monomier radicals
formed on chain transfer participate in chain rupture. The activation
energy of the raonomer transfer is reckoned as 4-7 kcal/mole .11i6her than
that of gro-~Ah. In the presence oil pentachloro-ethane, the activation
energy is Dooitive, as sufficiently reactive radicals develop during
transfer for reinitiation, and monomer radicals are removed froi~ the system
by transfer. For the logarithmic dependence of the polymerization rate on
radiation dose, the degree n (v=kln) is higher at higher temperatures. This
is due io variation in the participation of the indivilual partial reactions
(destructive transfer on the monomer). increase of the index from 0-5 to
1 during radical pol-,rinerization is explained byt (1) destructive transfer'
on the monomer or (2) by reac.-Aon of Primary radicals vAth the macro-
radicals of irrovith. (1) *hol'is with temperature rise. Since with a
certain minimum close llnormal:' ratios are obtainel between polymerizati6n
rate and heat of reaction, tie activation energy of polXmerization must
depend closely an the dose rate. There are 5 figures.
Card P/3

S/190/62/004/000'/026/026
.10
Polymeriz--tion of trifluoro ... B110/,11-18
A3SOC1AT1U--'--: i'hiadcnenkiye instituty Slov;Askoy-Akademii nauk,
Bratiolava (Cfleriical InstituLes of the 31ovak Academy of
Scicnces, Bratislava). llauchno-issledovatullskiy institut
kaboley i izolyatsionn-kii materialov, 6ratislava (Scientific
;iecearch Institute for Cables and Insulating Material,
Bratialava)
SUB"11ITTED: October 31, 1961
Card 3/3

ROMMOV, A. - WAR M
Preparation and identification of a graft copolymer
"atactic polypropylene-polystyrene". Vysokom. soed.
4 no.12.1867-1871 D 162. (MIRA 15:12)
1. Khimicheskiy institut Slovatakoy akademii nauk, Bratislava.
. (Styrene polymers) ~-Z*-
(Propene)

BELLUSH, D. [*Uus, D.); MANWEX, Z. [Manasek,, Z.]; IAZAR, M.
Chlorophosphoz7lated atactic-polypropylene. VyBokom.soed. 5
no.W45-150 Ja 162. (bffRk 16d)
1. Khimicheski institut 51-ovatskoy kkademli nauk, Bratislava.
I
(Propenel (Phosphorodichloridic acid) (Polymers)
I I

MANYALSEKS Z.[Manasek Z.]; MICHKO, M.[Micko, M.]; PAVLINETSp Y.
[Paviinec, J.); LAZAR, M.
Modifica-tion of PolYpropylene fibers by the grafting Of
acrylonitrile. Khim. volok. no-3:20-24 163. (MIRA 16:7)
1. Institut drevesinyp tsellyulozy i khimichoskM volokon
Slovatskoy Akademii naukq Bratislava., Chekhoslovatskaya
Sotsialisticheskaya Respublika.
(Textile fibers, Synthetio)
(PolMopylene) (Aer7lonitrile)

LItZiji -?,: . ,, ~
t64-

RADO, R., SZOCS, F.; LAZAR, 14.
Disapperance of macroradicals in peroxide initiated transformations
of hard polymers. Coll Cz Chem 30 no.3-894-897 Mr 165,
1. Forschungsinstitut fur Kabel und Isolierstoffe und Laboratoriiim
der Polymere, Slowakische Akademie der Wissenchaften, Bratislava.
Submitted November 15, 1962.

"M
L 3515-66 EPA(s)-2/EWT(m)/E P Fc1E P Aw2/E V I PjE W r-t/F i V Pb ) I/Efi A
AMS018508 BOOK EXPLOITATION UR/
621,315*616.9
La zar, Milan; Rado,_Rudolf;_Klimany Norberttoli~
Fluorocarbon plasties,(Ftoroplasty), Moscow, Izd-vo "Energiya," 19650
303 V. Illus., bLblio. 3300 copies printed, Translation of
Fluoruhlikove plasticke latky. Bratislava, SVTL, 1960.
TOPIC TAGS: copolymer, fluorocarbon plasticl fluorocarbon polymer,
polyflu6roethylene re*sln, polymerization technology, polymer prop-
erty, polytetrafluoroet4ylene, pplytrLfluorochloroethylene
PURPOSE AND COVERAGE: This book is intended for personnel in indus-I.-.
tries producing plastics and electrical InsulationX-The authors
the physical and chemiial-backg d of' various fluoro-
carbon plastics, discuss raw materials, polymerization technology;`
polymer properties,,and describe the use of manufacturing equLpmenti~..,
and ef f icient production Tepkods in this f Leld. They thank engL-i,rP-r,'r
neers V (AW hohl and V.4 ofids. Many references# mainly 'Restern,
An
accompany moat of the chapters*
CArdi3