SCIENTIFIC ABSTRACT FR:MEZHIROVA, L.P. TO:MEZHEV, Y.T.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001033800040-6
• Release Decision: RIF
• Original Classification: U
• Document Creation Date: November 2, 2016
• Sequence Number: 40
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTR

APPROVED FOR RELEASE. 06/23/11 CIA-RDP86-005138001033800040-6

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r~lr';~E polyrner:i.zation of st;~rene and nutadienE a~lt,h .~
amulalons under the action of i.r~ztiat3.n~ j`et:1~.~x r~`,r}tretr,:;
[1� E'f'fect cif the n~ttia.r�e oz the reducl.n~' rz.~c'r,1- an ,~.,- r:zt.r.
oP pol,ymer~z.ata.on
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~'c,I,ym�r]_Grx'tlon cif ut;,~r~;nr~ anri Ii11U~1;i47
phase baunlur,yq f'ar- I + IV alr~a ;in t.ne aqueous >>h.asA m}~~~ ex,.) orris
_ichaeved Fzfter ? hr with 0..2 '~ by we i.rr}it of 1 and with U..3 "~, b,y wc~i.gh+-~ ~ ~'
III .. With 0 ~ 34 % by weight of II y optimum conversion (N 30 ~) was roc tii �"�r~,
after 2 hr. Polymerization of I and IV with 704 or 2,,8 `~ by weight cf
emulsifier was constant up to 30 /conversion, then the rate dxopped 4V;t}-i
.1-4 ~~ by weight, the initial rate was lower and the decrease more d~5t:tinc~.. ~/
PJith an addition of 0,1 �1 'by weight of hydroperoxide +0.26 f by weight or ~`
iV ;,after 1 hr new addition of 0.1 f by weight of hydroperoxide and 0 j8 i~
by weight of IV), constant polymerization took place up to 60 ~ con`ersior<
Thus the consumption of the in~.ttati.ng system cau9es a decre~.se in r
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6b816
h "Carbanion" Mechanism of the Polymerization Under the Effect of C3~i3
On t e
Rays ~, show that the polymerization of the acrylic
of ~,anma rays,
acid nitrite in solving agents with electron donor substituen
(triethyl amine, dimethyl formamide)cuallr~used fort+carbonium
occurs in ethyl chloride (which is yrou s� Contrary;
polymerization containing electrophilic ~' P
st rene polymerizes only in ethyl chl~oleculehecondtainingow
y
that acrylic acid nitrite, which has under the liven cond:~t�~onss
electronegative groups, polylnerizes9 to the
not according to the radical mechanism9 but according
It is mentioned that more detailed
"carbanion mechanism, ublished
-results of the investigat?o~h~~r~~~demicianlS.bSapMedvedev�
later and that the authors
There are 1 table and 3 references, 2 of which a.re Sovle'�
Card 2~2
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6687b
v , 3~~? ~ sov/7~~33-~ ~-47/47
~~ A, p., Mezhirova, L� PQ
AUTHORSs Abkin. A�_D�, Sheynker,
pol, morizclti Under the
TITLES On the "carbanion" ~echaziiem of
Ef feat of Gamma Rays ~a
icheslcoy khimii, 1959, Vol 33, i1x 1 ~' P 236
PERIODICALS Zhurnal fiz
(USSR}
on the polymsriLatl-on of Ilene
Data from publications (Ref ~~
ABSTRACT: Dint polymerization of isobuty
buty].ene, and data of tha j
' dene chloride and of ~~~e ntyr�ne wa. shown that at low __J
with vinyls the authors (Ref ~) ,J
methacr~rlate, obtained by v(
exatures~and influenced by nuclear radiation, the po Y�'
Comp ~ according to the carbonium mechanism. Up to
merization occur ublications on the course
present there is no information in,pol merization under the in-
of a "carbanion mechanism at thE, i y
nuclear radiation. It has been established that the
fluence of g both mechanisms
roceed accordin to
of merization may P tl~e
P y but by
opium or "carbanion" mechanism) athetmonomers,is no e_.
(carb
termined by the chemical structure �1} rle.ri77tion of ac~lic
nature of the medSt1nSeDe~~ton7t81oC Table) under the influence
Card 1/2 ac~.d nitxile`~ and _~�_
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S/2f)7/62/OOfl/(N)3/Ol SI~1J 6
(028~122ti
AUTHOR: Mezhirov, I. I. (Moscow)
TITLE: ~ Calculation of the one-dimensional flow ~n a variable-section duct m the presence of
friction and heat exchange ,//
I'1.i1ZIUDl~..'AL ''/...hurnal prikla~lnuy ntckhEiitiki i lckhnicheskoy liviki, n~~..1, 14b?, ~)2 9 i
TEXT: The influence of the frictional forces and the heat exchange on the gas pressure is investigated; the
problem of finding a low ~f variation of the duct section ensuring a given distnbution of the M numbers for
a given law of heat exchange is solved; the law of variation of the total gas temperature cnsunng a given
distribution of the M numhers in