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Spectral investigation of the products formed during polymerization of styrene with 9-vinylanthracene additions
Abstracts
157
*STUDIES IN CYCLIC P O L Y M E R I Z A T I O N A N D C O P O L Y M E R I Z A T I O N - - I I I . S Y N T H E S I S A N D CYCLIC P O L Y M E R I Z A T I O N OF A L I P H A T I C D I V I N Y L A C E T A L S . N E W M E T H O D OF P R E P A R A T I O N OF P O L Y V I N Y L A C E T A L S
S. G. M a t s o y a n , M. G. A v e t y a n N o . 4, 5 6 2 - 5 6 9 , 1961.
a n d M. G. V o s k a n y a n ,
V y s o k o m o l . s o e d i n . 3:
SEV~.RAL aliphatic divinylacetals have been synthesized b y interaction of aldehydes with ethylene chlorohydrin and dehydrochlorination of the resultant ]~,fl'-dichlorodiethylacetals. I t has been shown t h a t in the presence of radical initiators divinylacetals polymerize only according to the cyclic mechanism with the formation of acetal derivatives of polyvinyl alcohol, i.e., polyvinylacetates. Optical conditions for the cyclic polymerization process and the properties of the polydivinylacetals have been investigated. S P E C T R A L I N V E S T I G A T I O N OF T H E PRODUCTS F O R M E D D U R I N G P O L Y M E R I Z A T I O N OF S T Y R E N E W I T H 9 - V I N Y L A N T H R A C E N E A D D I T I O N S
A. S. C h e r k a s o v a n d K . G. V o l d a i k i n a , V y s o k o m o l . s o e d i n . 3: N o . 4, .570-576,1961. FROM a study of the absorption and fluorescence spectra of the products formed during the catalytic and thermal polymerization of styrene with 9-vinylanthraceno additions it was found t h a t interaction of these compounds leads mainly to low molecular monomesosubstituted anthracene and to products with disrupted anthracene structure. Only insignificant amounts of high molecular styrene-vinylanthracene polymers are formed. The possible structures of the reaction products of' styrene with 9-vinylanthracene in the polymerization process have been discussed. F O R M A T I O N OF P O L Y O R G A N O T I T A N O S I L O X A N E S
K . A. A n d r i a n o v a n d Sh. V. P i c h k h a d z e , V y s o k o m o l . s o e d i n . 3: N o . 4, 574-5811, 1961. THE co-hydrolysis of dimethyldichlorosilane, diethyldichlorosilane and methylphenyldichlorosilane with bis-(cyclopentadienyl) dichlorotitanium has been investigated. The reaction was found to be accompanied b y removal of cyclopentadiene groups. The double decomposition of disodium salts of dihydroxypolymethylsiloxanes and bis-(cyclopentadienyl) diehlorotitanium is accompanied b y formation of titanium-containing silicon polymers. POLYMERIZATION
OF N - S U B S T I T U T E D
M E T H A C R Y L A M I D E S -- IV
T. A. S o k o l o v a , G. M. C h e t y r k i n a a n d L. A. O v s y a n n i k o v a , V y s o k o m o l . s o e d i n . 3: N o . 4, 5 8 2 - 5 8 4 , 1961. INSOLUBLE polymers have been shown to form in radical polymerization of ~-octylmethacrylamide, o-, m- and p-polymeehacrylamides (TMA), m-xylyhnethacrylamide (XMA), m-methoxyphenyl, m-ethoxyphenylmethacrylamides, and p-carboethoxyphenyl methac .rylate (CEPM). The insolubility is evidently due to crosslinkage taking place in the polymerization process. Proof of this is the fact that soluble polymers are obtained when isomeric TMA and CEPM are polymerized to the extent of 20O/o and insoluble polymers, when the reaction is carried further. Moreover some of the monomers yield soluble polymers with methyl m e t h a c r y l a t e and styrene when the contents of the methacrylamides are The Publisher will be pleased to quote t'or the supply of a full English translation of any papers abstracted in these pages.
157
*STUDIES IN CYCLIC P O L Y M E R I Z A T I O N A N D C O P O L Y M E R I Z A T I O N - - I I I . S Y N T H E S I S A N D CYCLIC P O L Y M E R I Z A T I O N OF A L I P H A T I C D I V I N Y L A C E T A L S . N E W M E T H O D OF P R E P A R A T I O N OF P O L Y V I N Y L A C E T A L S
S. G. M a t s o y a n , M. G. A v e t y a n N o . 4, 5 6 2 - 5 6 9 , 1961.
a n d M. G. V o s k a n y a n ,
V y s o k o m o l . s o e d i n . 3:
SEV~.RAL aliphatic divinylacetals have been synthesized b y interaction of aldehydes with ethylene chlorohydrin and dehydrochlorination of the resultant ]~,fl'-dichlorodiethylacetals. I t has been shown t h a t in the presence of radical initiators divinylacetals polymerize only according to the cyclic mechanism with the formation of acetal derivatives of polyvinyl alcohol, i.e., polyvinylacetates. Optical conditions for the cyclic polymerization process and the properties of the polydivinylacetals have been investigated. S P E C T R A L I N V E S T I G A T I O N OF T H E PRODUCTS F O R M E D D U R I N G P O L Y M E R I Z A T I O N OF S T Y R E N E W I T H 9 - V I N Y L A N T H R A C E N E A D D I T I O N S
A. S. C h e r k a s o v a n d K . G. V o l d a i k i n a , V y s o k o m o l . s o e d i n . 3: N o . 4, .570-576,1961. FROM a study of the absorption and fluorescence spectra of the products formed during the catalytic and thermal polymerization of styrene with 9-vinylanthraceno additions it was found t h a t interaction of these compounds leads mainly to low molecular monomesosubstituted anthracene and to products with disrupted anthracene structure. Only insignificant amounts of high molecular styrene-vinylanthracene polymers are formed. The possible structures of the reaction products of' styrene with 9-vinylanthracene in the polymerization process have been discussed. F O R M A T I O N OF P O L Y O R G A N O T I T A N O S I L O X A N E S
K . A. A n d r i a n o v a n d Sh. V. P i c h k h a d z e , V y s o k o m o l . s o e d i n . 3: N o . 4, 574-5811, 1961. THE co-hydrolysis of dimethyldichlorosilane, diethyldichlorosilane and methylphenyldichlorosilane with bis-(cyclopentadienyl) dichlorotitanium has been investigated. The reaction was found to be accompanied b y removal of cyclopentadiene groups. The double decomposition of disodium salts of dihydroxypolymethylsiloxanes and bis-(cyclopentadienyl) diehlorotitanium is accompanied b y formation of titanium-containing silicon polymers. POLYMERIZATION
OF N - S U B S T I T U T E D
M E T H A C R Y L A M I D E S -- IV
T. A. S o k o l o v a , G. M. C h e t y r k i n a a n d L. A. O v s y a n n i k o v a , V y s o k o m o l . s o e d i n . 3: N o . 4, 5 8 2 - 5 8 4 , 1961. INSOLUBLE polymers have been shown to form in radical polymerization of ~-octylmethacrylamide, o-, m- and p-polymeehacrylamides (TMA), m-xylyhnethacrylamide (XMA), m-methoxyphenyl, m-ethoxyphenylmethacrylamides, and p-carboethoxyphenyl methac .rylate (CEPM). The insolubility is evidently due to crosslinkage taking place in the polymerization process. Proof of this is the fact that soluble polymers are obtained when isomeric TMA and CEPM are polymerized to the extent of 20O/o and insoluble polymers, when the reaction is carried further. Moreover some of the monomers yield soluble polymers with methyl m e t h a c r y l a t e and styrene when the contents of the methacrylamides are The Publisher will be pleased to quote t'or the supply of a full English translation of any papers abstracted in these pages.