首页 | 本学科首页   官方微博 | 高级检索  
     


Radical polymerization in disperse systems,by J. Bartoň, I. Capek. Ellis Horwood Ltd,Chichester/VEDA,Bratislava, 1994. pp. 352, price £68. ISBN 0-13-752353-X
Authors:A S Dunn
Affiliation:Department of Chemistry, Harcourt Butler Technological Institute, Kanpur-208002 (U.P.), India
Abstract:Radical copolymerization of zinc acrylate (ZnA2) with acrylonitrile (AN), initiated by As2S3–styrene complex(I), in dimethyl Sulphoxide (DMSO) at 90 ± 0.1°C for 1.0h under inert atmosphere, yields non-alternating copolymers. The kinetic expression is Rp ∝ I]0.33 ZnA2]0.25 AN]0.44, i.e. the system follows non-ideal kinetics, which is due to primary radical termination as well as degradative chain transfer reactions. The values for activation energy (E) and k2p/kt are 128kJ mol?1 and 8.57 × 10?7 litre mol?1 s?1, respectively. Thermal stability, solubility in different solvents, and IR and NMR spectra have been evaluated.
Keywords:Zinc acrylate  acrylonitrile  As2S3–styrene complex  copolymerization  dilatometry  kinetics
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号