SCIENTIFIC ABSTRACT KRENTSEL, B. A. - KRENTSIS, R. P.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000826410012-7
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: July 31, 2000
• Sequence Number: 12
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

sj(190/63/005/003/003/024
Interaction of chlorinated*.. B101/B186
of the initial polyethylene were not changed by chlorination and that it
was maintainee, also after amination. Aith high chlorine coiltent the
aminated products were dark-colored, insoluble owing to the cross-linking$
a
n
d easily dehydrochlorinated while forming C-0 bonds. In the product ob-
.1
tained by reaction with anilin a weak 1600 cm' band proved the presence
of aromatic rings. Vinyl-, vinylidene-, or other alkene groups could not
be detected. In the reaction product with Dion-butylamine, C-N bonds
(1073 om -1 ) and 0-0 bonds could be detected (16oo - 1700 cm- i. bands)*
These bands, however, were so diffuse that the alkene groups could not be
identified* The reaction product with.ammonia showed weak and 682 and
796 cm bands, corresponding to the stretching vibrations of the C-Cl
bandn as a wide 1580 - 1700 am band caused by the superposition of the
band with the G-C stretching vibrations (1680 - 1620 cm
1580 cm NH2
There are 2 figures and 3 tables.
ASSOCIATIONt Institut neftekhimicheekogo sintOza AN SSSR (Institute of
Petrochemical Synthesis AS USSR)
SU13MIT Us July 22, 1961
Card U2

n' _&~~MBMTIY _&Jlr_'DIUO~511~
op-MW
A'4
AM 11r. 972-34 21 may
NEW POLYMERIC SCHIFF BASES AND THEIR ELECTROPBYSICAL PROPER-
TIES (IJSSR)
Davydov, B. E., B A. Krentsell, Yu. A. Popov, and L. V. Prokoflyeva.
Vysokomolekulyarnyye soyedineniya, v. 5, no. 3, Mar 1963, 3~1-324.
$/190/63/00510031004/024
New polymeric Schiff bases with conjugated bonds and with a hetero atom in the
bac'"'bone have been synthesized by polycondensation of p-phenylenediamine -
(PPDA) with 2,3-butanedione (1), terephthalaldehyde (11), or glyo'xal (111). The
polycondensation products of PPDA and I (polymer II-1 ), 11 U1-2), or 111 (11-3
are black, brown, or yellow powders, respectively. All three are soluble in
sulfuric acid, and fl-I and fl-2, in formic and phosphoric acids also. IR
spectra indicate =C-C= bonds and a 1, 4-substituted benzene ring in 11-1 and
ft-3 and a methyl radical in 11-1. X-ray analysis shows that 11-1 and N-2
have a crystalline structure and that 11-3 is amorphous. 11-3 emits a single,
narrow EPR signal indicating the delocalization of electrons in the system of
Card 212

,AID Nr. 972-34 21 May
MEV POL)r'21RIC SCUM BASES (Cont,d]
S/190/63/005/003/004/024
conjugated bonds; 11-1 and 11-2. emit no EPR signa'l's'-.--"if-e-a-t-treatment of
n-I , 11-2, and 11-3 for 4 hrs resulted in the following losses in weight: -at
250-C, 12.87, 3 .56, and 20 .976; and at 300*C,- 17 .20 ' 5.16, and 27 .407a, re-
spectively. Heat-treated 11-1 and 11-2 emit a single, narrow EPR signal,
probably because of further polycondensation, which results in a longer poly-
conjugation chain. The electrical conductivity (a) of the synthesized substances
is related to temperature by
a = %e
1. 1 ~ ohm 1-cm 1
a varied from.1.8,10 ohm- cm- for 11-2 13 to 3. 2i-!O - -, for--
inurm -ily--t---
a ;(Ya'o varied from 2.5-.10- ohm- -cm for therroally
treated R-3 to 1.1 .10-1 qohm-l.cm- 3, for n-1. The study was carried out
at :he Institute of Petrochemical Synthesis, Academy of Sciences TJSSR.(BAO]
Card 2/2

81190/63/bb5/004/013/020
B101/BZ20
~AUTHORSs Krentsell, Bo A.# Semenido, a# Ye., Illina, D. Ye.
TITLEs Degradation of polymers containing chlorine. I. Degradation
of chlorinated polypropylene
PERIODICAL& Vyaokomolokulyarnyye noyedineniya, v- 5, no. 4, 1963, 556-563
TEXTz Chlorinated polypropylene (CPP) containing 3 - 75-25 r/4 Cl was
heated in vacuo at WO - 2500C and the gases evolved were determined
chromatographically, while the HU liberated was measured ar&entometti-
cally. Up to 2380C only HC1 is liberated in quantities increasing with
the temperature. The rate of CPP degradation in constant for the tirst
10 - 20 min, after which the degradation reaches a certain degree and then
ceases at the given temperature. This in attributed to possiblelntra-
molecular and intermolecular dehydrochlbrination, in the latter case with
.crosslinking. For the intramolecular process k A1exp(----l /RT), for the
intermolecular process k A exp(-E,/RT)j where E /' El, A2 *> A,. Hence,
2 2 2
at low temperatures k 2> k,t intermolecular dehydrochlorination sets in,a,nd
Card 1/2

5/190/63/005/004/013/020
Degradation of polymors, ... B101/B220
S,ince HG1 liberation from the orouslinked polymer is made difficult it
coaaeu at a given temperature. The mean effective activation energy of
this dehydrochlorination ie B m 6 kcal/mole- OPP with 45 7`5 Gli In which
thus all H atoma bound to tertiary 0 atoma are substituted by Cl, shows
tho lowost heat resistance* There aro 6 figurqa and 2 tables.
ASSOCIATIO11i Inatitut neftekhimichookogo sinteza JUT SSSR (Institute of
Petrochemical Synthesis of AS USSR)
SUBMITTED t October 2, 1961
Card 2/2

'777-
3/190/63/005/004/014/020
BIOI/B220
AUTHORSs -Krpn "101 B .A 1, Seatenidop G. Te.9 Illina,,D. Ye.,Shishkina,
VO
TITLEs Degradation of polymers containing chlorine. II. Dehydro.
chlorination mechanism of ohlorinated polypropylene
PERIODICALt Vysokomolekulyarnyye soyedineniyat v. 5, no. 4, 1963, 564-567
TEXTt The IR spectra of chlorinated polypropylene were studied after
thermal treatment at 120 and 2380C. A comparison with the IR-spectrum of
polypropylene shows that chlorine substitutes mainly the H atoms bound to
the tertiary C atoms.' Thermal.treatment at 120cC had almost no effect,on
the IR spectrum. At 238OCl howevert several bands were obeerved which con-
firmed croeslinking by intermolecular dehydrochlorination. A discussion of
the possible reaction processes show& that a radical mechanism is improbW4
since its activation energy, E a 36,5 kcal/mole, is higher-than the activa--
tion energy of dehydrochlorinationt E a 8 kcal/mole, and the radical
process note in only above 1400C. Elence an ionic mechanism is assumed.
The polarizing effect of chlorine induces pooitive charges at the cc ands
Card 1/2

Degradation of polymers ...
S/igo 63/005/004/014/020
B101/V.220
C-atoms so that protons are knocked out and croaslinking sets in. There
is 1 figure.
ASSMATIONs Inatitu't tie f tekhimicheckogo sintoza AIT-SSSR '(Institute of
Petrochemical Synthesin of AS USSR)
SUNIAITTEDi October 2, 1961
Card 2/2

AYRAPETYANTS, A.V.; VOYTENKO, R.M.; DAVYDOVI B.H.; KRENTSELI. B.A.
Electric conductance mechanism in organic semiconductor Polymers.
Dokl. AN SSSR 148 no.3:605-608 Ja 163. (MIRA 1612)
1. Institdt neftekhimicheskogo sinteza AN SWR i Instilart polu-
provodnikov AN WSR. Predstarleno akademikom V.A* Kar inym.
(Polymers-Electric properties) (Semiconductors

STOTSKAYA, L.L.; KRENTSFL', B.A.
Now data on the meehanism of ethylene polymerizatiop In the prusence
of a soluble catalytic system -Sn(C6H5)4 4 AlBr3 + VCJ Dokl.
AN SSSR 151 no.3%595-596 J1 163. &RA 1619)
1. Institut neftekhImicheskogo sinteza AN SSSR.
(Ethylene) (Polymerization) (Catalysis)

ALIYEV, A.D.; ARBATSKIY, A.V.~ '~MISHKPIA, M.V. i-KRE.1-IrTS-FLI, B.A.
Stereosp(,.-ciflo~, polpr.4~:rlzatton of
Dokl. AN SSFR 153 no.2-)3)-.'!35 IN 763. (HERA 1b: 12)
1. Institut naftokhlir-4-,~heskoiyo rlnt~--.a )VI S3311. Pred:,tliivl~,no
akadr,mikom V.A.Kfir-ginym.

YdZiTSM-1, boris Abramovich; TOFCHIYKV, A.V., akadernik, otv.
red.[decea.ged]; FOVAROV, L.S., red.
(Chlorination of paraffin hydrocarbons) Khlorlrov:~nie
parafino,vykh uglevodorodov. Moskva, flauka, 196-4- 157 p.
(I'MA 17;8)

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' , i-l-or ~; z Ao t-W07-'--7 ~117 (j-,k I, c, r ;,~;j r.. !-Jt-k ; - j . , , .. ,
T,~~` I t, I a tlr I g.'- , k~j r. . tprr,r,, Mvik
Polipropilon. Kiev, Tekimikp-2 -,962.. ~9 !,.
I
kl.fI;IA L8-";)

L1603h-65 2/AF_FfF/1-,
--=S31-0N NR: AP4045800 UFN 4o
7
~(a)/Fn(t)~/006
Rt",(C) Pit
AUTHORS: Nasirov, FJA; Karpachevaj G.P.; D Krentsel_!,_
B.A.
e 0m lex or&ncmetallic catal
TITLE: Structure of the solubl c
acetylene p9l Morization
y 700:
SOURCE: ANISSSA. lsv*, Seri a'khimicheskayat no. 9, 1964s 1697-1
TOPIC TAGS; acetylene polymerization catalyst, complex organometal.
lic catalyst, structure, chemical behavior, triethylaluminum, Yana-
dium acetylacetonate,'triethylaliminum vanadium acetylacetonate
catalyst, tetravaleht vanadium, divalent vanadium) magnetic suacepti-
bility, EYR spectrum, magnetic moment, g-factor
ABSTRACT: The structure and the chemical nature of the active cen-
ters of the acetylen
e polymerization catalyst complex formed by
reaction of triethylaluminum with vanadium acetylacetonate were
examined. The catalyst; prepared by m' ing VC1011' 0 with a four-
fold exceas of-A1-(C2H5)3 An-benzene-at room tempeMtare, appeared
homogeneoui. It was proposed that the f ormation of the active -cata.-I
1
C Xtic complex took place according to the reaction shown in the
d
- 113. . .....

1603L -65
ACCESSION NR: AP4045800
enclosure in which the tetravalent vanadium was reduced to the di-
valent. The magnetic susceptibility and the EPR spectra of the
vanadium~ The,
adetylacetonate and of the complex were examined.
magnetic moment Br VClOH 0 , determined from the reverse molar mag--
netic-suseeptibility.-te;Z~rk~ure (120-300K range) relationship,
was 1.67 ;,for the C~omplex, 3483 Similar values for magnetic:
moment were calculated from g-factors obtained from EPR spectral
date, confirming divalentq,of the vanadium inthe complex. Grig. j
art. has::3 figures and.2 equations*
ASSOCIATION: Institut neftekhimicheakogo sinteza im. A.V. Topchiyeva
Akademii nauk SSSR (Institute of Petrochemical Pjtnt iesis Aggdemy
Sciences SSSR)
SUBMITTED: .27Jan64 ENCL: 01
SUB CODE: GC NR REF SOV: 002 OMER; 004
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"1: 1/0043/0052
A211024402 S/0204/64/004/00
jwtzll~ny", L.L.; Leahcheva, LF.; Xrentsel',B.A.
TITLE: Investigation of the ethylene Dolymerization reaction in'the
presence of the soluble catalyst system Sn (0 H jUBe - V01
SOU.RCE: Neftellchimiya, v. 4, no. 1, 1964, 43-52
TOPIC TAGS: ethylene, polymerization, polymerization catalyst, Ziegler
catalyst, soluble catalyst system, vanadium containing catalyst
system, catalyst mechanism, polyet.'aylene, catalyst component ratio,
linear polymer, crystalline polymer, crystalline polyethylene,
molecular weight distribution, electron microscope, polye,,thylend-
r-onocrystual, propylene polymerization, vanadium tetrachloride con-
t-aining catalyst, tin tetraphenyl containing catalyst
,'23T2,UCT: The polymerization of ethylene in the presence of the
k-led to
soluble catualyztu system was investigal explain the mechanism of
4-le catualyst action and the characteristics of -.'.he polymer obtained.
Examination of the catalyst component ratios indicated that a 1:1
ratio of AIX 3:Sn(C6"-'5)4'T8su16s in a practically iuactive catalyst;
Card 1/4

ACCESSION ITR: Ap4o244o2
its activity lncreases~up to a 2:1 iatio and remains..fairly constant
t*,ereafter. Intei-acti6n between these components is~,depicted by:
H Br2 + V r + AlBr where A13r
S H, 311Dr,75------~2A1C6 5
n(06 ::)4 + Sn("6H )23 2 3
in ef-cdss of 2 moles remains unreacted. -very small,am Lts of VC14
-,:.Ie required since.an excess cn~es dearylation of the aluminum-
or-anic comDley.. ',,Iith 1. 2 x 10 millimoles V01 a,.25"4',yield of high
vi~scozity (~.80) pIo'lyet,hylene is obtained; with 8.08 miollimoles the
yield is similar but thb viscosiuy of the material has dropped to
1.30; and .,,ith 0.06 millimoles the field 'suddenly drops to 5,-"', and
the viscosity to 1,10. The second stage of forming the active
cat-,1yZt complex between AIC -ZT which appears to require
,,~Br2 and V014,
the "DzoZance of monomer is d p ct-ed by:
C1 CHI - C11, C4116
CI-V -CI - - - Al - Br o-r,
Jr
-/4
ard
C
C1 C1
C11% - CUS - C111 CUS C4116
I I CUS CHI
V
C1 - V < C1 -
c1-- I - Dr I