Chain Transfer by an Addition-Substitution-Fragmentation Mechanism. 2. Preparation of .alpha.,.omega.-Difunctional Telomers through a radical transfer reaction on a Methacrylic-Type Cyclic Peroxyketal

1994 ◽  
Vol 27 (21) ◽  
pp. 5972-5978 ◽  
Author(s):  
Daniel Colombani ◽  
Philippe Chaumont
Keyword(s):  
Transfer Reaction ◽  
Chain Transfer ◽  
Fragmentation Mechanism ◽  
Alpha Omega ◽  
Radical Transfer

scholarly journals Cationic Copolymerization of Isobutylene with 4-Vinylbenzenecyclobutylene: Characteristics and Mechanisms

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 201 ◽  
Author(s):  
Zhifei Chen ◽  
Shuxin Li ◽  
Yuwei Shang ◽  
Shan Huang ◽  
Kangda Wu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Molecular Weight ◽  
Cationic Polymerization ◽  
Transfer Reaction ◽  
Chain Transfer ◽  
Solid Phase ◽  
Random Copolymer ◽  
Glass Transition Temperatures ◽  
Cationic Copolymerization ◽  
Chain Transfer Reaction

A random copolymer of isobutylene (IB) and 4-vinylbenzenecyclobutylene (4-VBCB) was synthesized by cationic polymerization at −80 °C using 2-chloro-2,4,4-trimethylpentane (TMPCl) as initiator. The laws of copolymerization were investigated by changing the feed quantities of 4-VBCB. The molecular weight of the copolymer decreased, and its molecular weight distribution (MWD) increased with increasing 4-VBCB content. We proposed a possible copolymerization mechanism behind the increase in the chain transfer reaction to 4-VBCB with increasing of feed quantities of 4-VBCB. The thermal properties of the copolymers were studied by solid-phase heating and crosslinking. After crosslinking, the decomposition and glass transition temperatures (Tg) of the copolymer increased, the network structure that formed did not break when reheated, and the mechanical properties remarkably improved.

scholarly journals The Estimation of the Reactivity of the Growing Ion by Chain Transfer Reaction in Cationic Polymerization

1963 ◽  
Vol 20 (213) ◽  
pp. 49-57 ◽  
Author(s):  
Yukio Imanishi ◽  
Atsunobu Mizote ◽  
Toshinobu Higashimura ◽  
Seizo Okamura
Keyword(s):  
Cationic Polymerization ◽  
Transfer Reaction ◽  
Chain Transfer ◽  
Chain Transfer Reaction

scholarly journals Emulsion Polymerization of Chloroprene: Study of Branching and Chain Transfer Reaction by Kinetic Analysis of Gelation.

1991 ◽  
Vol 48 (12) ◽  
pp. 743-749
Author(s):  
Kenji ITOYAMA ◽  
Yasuaki DENDA ◽  
Nobuhiro HIRASHIMA ◽  
Shiro MATSUNAGA
Keyword(s):  
Kinetic Analysis ◽  
Emulsion Polymerization ◽  
Transfer Reaction ◽  
Chain Transfer ◽  
Chain Transfer Reaction
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