- Email: [email protected]
Carbochain polymers and copolymers—XXXVIII. Reaction of isotactic, polymethylmethacrylate with polyethyleneazelate
Abstracts
747
action can take place both at room temperature and on beating. This reaction wax utilized to prepare triethylsiloxydibutoxyaluminum and b i s - ( t r i e t h y l s i l o x y ) d i b u t y l ~ i t u n i u m from aluminunl butylate and triethylsilanol and from t e t r a b u t o x y t i t a n i u m and triethylsilanol, respectively. Condensation of the products with ~,(9-dil~y(lroxypolydimethylsiloxanes afforded linear polyahuno- and polytitanodimetl,ylsiloxanes. The reaction proceeds through the sta~ze of donor-accepter complex forination. The I R spectra of the polymers trove wvoah.d lhe existence of molecular interaction. Tiffs int('raetion is "dso manifested in tt,e thermo-meehanical properties of the polymers. Alumodimethytsiloxanes, prepared front polydimethylsiloxanediols, of molecular weight 30,00() are elas{~omers capable of vulcanizing to rubber with physico-meehanical properties similar to polydi:n,~thylsiloxane rubber of molecular weight ca. 500,000. CARBOCHAIN POLYMERS AND COPOLYMERS--XXXVII. POLYMERIZATION C O P O L Y M E R I Z A T I O N OF D I P H E N Y L V I N Y L P H O S P H I N A T E
AND
E. F. g o d i o n o v ~ , H. S. K o l e s n i k o v , L. S. F e d o r o v a a n d L. A. G a v r i k o v a , V y s o k o reel. s o e d i n . 4: No. 3, 4 4 8 - 4 5 1 , 1962. Till,: polymerization of diphenyl vinylphosphinate has been studied, and eopolymers of lhe ester with styrene and a.crylonitrile have been prepared. The tbermo-meehanical properties of the polymers and copolymers have been investigated. C A R B O C H A I N P O L Y M E R S A N D COPOLYMERS X X X V I I I . REACTION OF ISOTACTIC, POLYMETHYLMETHACRYLATE WITH POLYETHYLENEAZELATE
H. S. K o l e s n i k o v a n d G. T. G u r g e n i d z e , V y s o k o m o ] . s o e d i n . 4: No. 3, 4 5 2 - 4 5 4 , 1962. A ~,~M,'T polymer of ordered structure was obtained by reaction of polymethylmethacrylat~
with polyethyleneazolate and its properties were investigated. INFLUENCE OF T H E COPOLYMER COMPOSITION ON T H E ANISOTROPIC P R O P E R T I E S OF ITS MOLECULES
T. M. B i r s h t e i n , V. P. B u d t o v , E. V. F r i s m a n ~ n d N. K . Y a n o v s k a y a , V y s o k o reel. soe(lin. 4: No. 3, 4 5 5 - 4 6 2 , 1962. [T HAS been theoretically shown that the nature of the dependence of the molecular anisotropy of a copolymcr upon its composition is determined by the rotation of the backbone of the initial components. Provided the rotation of the chains is the stone, the anisotropy is linearly dependent upon the composition, for different rotation a non-linear dependence hohls. The experimental relal,ion between the optical anisotropy of styrene and parachloroslyrene nmlecules and the composition is linear. This indicates that the rotation in the chain is independent of the eopolymer colnposition. * H E A T S OF COMBUSTION OF P O L Y P R O P Y L E N E
OF V A R I O U S STRUCTURES
E. Z. F M n b e r g , M. O. T o m a r e v a , S. M. S k u r a t o v a a n d N. V. M i k h a i l o v , V y s o k o reel. s o e d i n . 4: No. 3, 4 6 3 - 4 6 7 , 1962. THE heats of combustion of two different specimens of isotaetic polypropylene and of fractions isolated from them have been determined. I t has been suggested that the differ. The Publisher will be pleased to quote for the supply of a full English translation of any paper abstracted in these pages.
747
action can take place both at room temperature and on beating. This reaction wax utilized to prepare triethylsiloxydibutoxyaluminum and b i s - ( t r i e t h y l s i l o x y ) d i b u t y l ~ i t u n i u m from aluminunl butylate and triethylsilanol and from t e t r a b u t o x y t i t a n i u m and triethylsilanol, respectively. Condensation of the products with ~,(9-dil~y(lroxypolydimethylsiloxanes afforded linear polyahuno- and polytitanodimetl,ylsiloxanes. The reaction proceeds through the sta~ze of donor-accepter complex forination. The I R spectra of the polymers trove wvoah.d lhe existence of molecular interaction. Tiffs int('raetion is "dso manifested in tt,e thermo-meehanical properties of the polymers. Alumodimethytsiloxanes, prepared front polydimethylsiloxanediols, of molecular weight 30,00() are elas{~omers capable of vulcanizing to rubber with physico-meehanical properties similar to polydi:n,~thylsiloxane rubber of molecular weight ca. 500,000. CARBOCHAIN POLYMERS AND COPOLYMERS--XXXVII. POLYMERIZATION C O P O L Y M E R I Z A T I O N OF D I P H E N Y L V I N Y L P H O S P H I N A T E
AND
E. F. g o d i o n o v ~ , H. S. K o l e s n i k o v , L. S. F e d o r o v a a n d L. A. G a v r i k o v a , V y s o k o reel. s o e d i n . 4: No. 3, 4 4 8 - 4 5 1 , 1962. Till,: polymerization of diphenyl vinylphosphinate has been studied, and eopolymers of lhe ester with styrene and a.crylonitrile have been prepared. The tbermo-meehanical properties of the polymers and copolymers have been investigated. C A R B O C H A I N P O L Y M E R S A N D COPOLYMERS X X X V I I I . REACTION OF ISOTACTIC, POLYMETHYLMETHACRYLATE WITH POLYETHYLENEAZELATE
H. S. K o l e s n i k o v a n d G. T. G u r g e n i d z e , V y s o k o m o ] . s o e d i n . 4: No. 3, 4 5 2 - 4 5 4 , 1962. A ~,~M,'T polymer of ordered structure was obtained by reaction of polymethylmethacrylat~
with polyethyleneazolate and its properties were investigated. INFLUENCE OF T H E COPOLYMER COMPOSITION ON T H E ANISOTROPIC P R O P E R T I E S OF ITS MOLECULES
T. M. B i r s h t e i n , V. P. B u d t o v , E. V. F r i s m a n ~ n d N. K . Y a n o v s k a y a , V y s o k o reel. soe(lin. 4: No. 3, 4 5 5 - 4 6 2 , 1962. [T HAS been theoretically shown that the nature of the dependence of the molecular anisotropy of a copolymcr upon its composition is determined by the rotation of the backbone of the initial components. Provided the rotation of the chains is the stone, the anisotropy is linearly dependent upon the composition, for different rotation a non-linear dependence hohls. The experimental relal,ion between the optical anisotropy of styrene and parachloroslyrene nmlecules and the composition is linear. This indicates that the rotation in the chain is independent of the eopolymer colnposition. * H E A T S OF COMBUSTION OF P O L Y P R O P Y L E N E
OF V A R I O U S STRUCTURES
E. Z. F M n b e r g , M. O. T o m a r e v a , S. M. S k u r a t o v a a n d N. V. M i k h a i l o v , V y s o k o reel. s o e d i n . 4: No. 3, 4 6 3 - 4 6 7 , 1962. THE heats of combustion of two different specimens of isotaetic polypropylene and of fractions isolated from them have been determined. I t has been suggested that the differ. The Publisher will be pleased to quote for the supply of a full English translation of any paper abstracted in these pages.