SCIENTIFIC ABSTRACT VINOGRADOVA, S.V. - VINOGRADOVA, S.V.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001860010005-0
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: September 1, 2001
• Sequence Number: 5
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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14,le of acid shloride I,m~i aloptatic ~;n-!
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boxylic acidz in the proceci:. of
All S~~R.Otcl.khim.nauk Yio.10.08071-18.0 0 c62,, (11TRA 15 ',-"0)
lo Institut elementoor&&nll.chF,,qL-iMi soyedineniy AN SSSR-
(Acida,. Organic) (.Chlorides) (Hyclrolys3*.!!
(Polymorization)

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7 s/1 91/62/000/01 1/()06/C)i 9
BI 01 /B1 86
AUTHORS: Akutin, M. S.9 Korshak, V. V., Rodivilova, L. A.j
Vinogradova, S. V., Budnitskiy, Yu. M., Valetskiy, P. M.,
devap.A. S.
TITLE: New data on processing and properties of polyarylates
PERIODICAL: Plasticheskiye massy, no. 11, 1962, 20-26
TEXT: This paper deals with experiments for determining the optimum
processing conditions of polyarylates from isophthalic acid and diane (ID),
terephthalic acid and diane (TD), and the mixed*polymer ITD (ratio iso-
to terephthalic acid 1:1). Preliminary experiments showed that the
interfacial polycondensation in more concentrated solutions than hitherto
usual gave polymers with low molecular weight: thus 13-5~j by weight of
diane in NaOH solution + 15-20% by weight of isophthalic dichloride in
methylene chloride yielded a polymer with M71 -18,000. A better result was
obtained for ITD in the presence of 1~* triethyl benzyl ammonium chloride
as catalyst: the reduced viscosity in tricresol was 0-58- Injection-
molded products were made from ID, TD, and ITD, and tested. Results:
Card 1/3.

S/191J62/000/O1i/co6/oi9
New data on processing and ... Bioi/Bie6
(1) At 280-360'C, ID and TD can be processed only in inert gas atmosphere
since thermal destruction occurs if air is present. ITD can still be
processed at these temperatures in the presence of air. (2) The strength
of products depends on the molecular weight (or on the reduced viacosity).
Adequate tensile strength (-400 kg/cm2) in attained above 'qred - "0'
Products with a tensile strength of 850-900 kg/cm 2 were obtained from ITD
with -r, red '1.9-2.0. (4) The tensile strength drops from 820 kg/cm2 at
0 ' 2 0
260 C to 480 kg/cm at 340 C . (5) The effect of the molding time becomes
manifest the tensile strength dropping from 850 kg/CM2 after 10 min to
300 kg/cm2 after 30 min -:,olding time. (6) A change in molding pressure
has no effect on the tensile strength. (7) Increasing the temperature of
the mold from 80 to 1600C increases the tensile strength from 650 to
820 kg/cm2, but a further increase (to 200'C) reduces the tensile strength.
(8) A study of the chemical stability of injection-molded specimens and
films showed: good stability to mineral and organic acids, oxidants, and
dilute alkalis; poor stability to concentrated alkalis, particularly
ammonia; swelling in some solvents, injection-molded specimens being more
stabla than films. The chemical stability of polyarylates resembles that
of polycarbonates, and is inferior to that of polyethylene terepb%halate
Card 2/3

3/191/62/000/011/006/019
New data on processing and ... B101/B186
only as regards the swelling in some organic solvents. There are
8 figures and 6 tables.
I
Card 3/3

KNYA2EVA, T.S.; KORSHAKI V.V.; AKUTIN, M.S.; KULEVA, M.M.; VINOGRADOVA,, S.V -
P.M. 5 IT. '.
I RODIVILOVA, L.A.; NEDOPEKINA, T.P.; VALETSKIY, ;.. MDROZOVA, . .,
SALAZKIN, S.N.
I
Possibility of using various polyarylates as insulating film
materials. Plast. massy no.12:37-40 162. (MRA 16:1)
(Acids, Organic) (Polymers) (Insulating materials)

:~/;0/62/004/003/002/023
B110/B144
AUTHORS: Korshak, V. V., V~-_ gradova, S. V., Sptlazkin, S. N.
TITLE: Heterochain polyesters. XXXIII. Polyarylates on
phenolph'.halein base
PERIODICAL: Vysokomolekulyarnyye soyedineniya, v. 4, no. 1), 1962,339-3144
TEXT: Homoreneous and mixed polyarylates (I) on phenolphthalein base viare
synthesized, 'and the effect of the initial co.,:,pound structure on 'their
properties was examined. The authors hoped to obtain a polymer which
would be well soluble by virtue of the large phenolphthalein side groups
and which would have a sufficiently high softening temperature owinE to
the polar C--roup in the side group. The lactone Cz:roup was to be modified
to reactive carboxyl and hydroxyl groups as follows:
-0 , C
\'Cr
-%00CRC0
0 C - e,-%00C it c0
\0 into /\0H
Ilk,/COOH