The cationic polymerization of α-methylstyrene in liquid sulfur dioxide initiated by the HI/I2 system

被引：0
作者：
Marcia G. Oliveira
Ana C. F. Moreira
B. G. Soares
机构：
[1] Universidade Federal do Rio de Janeiro,Instituto de Macromoléculas
[2] Centro de Tecnologia,undefined
来源：
Polymer Bulletin | 1997年 / 38卷
关键词：
Molecular Weight Distribution; Monomer Concentration; Vinyl Ether; Cationic Polymerization; Narrow Molecular Weight Distribution;
D O I：
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中图分类号：
学科分类号：
摘要：
The polymerization of α-methylstyrene (αMeSty) initiated by HI/I2 or HI in the presence of liquid sulfur dioxide has been investigated. The number-average molecular weight increased with the monomer concentration for reactions initiated by the HI/I2 system. I2 also participates in the initiation process, increasing the number-average polymer chain at higher monomer concentration. HI alone is also able to initiate the polymerization of αMeSty in the presence of SO2. With this initiator, transfer reaction can be minimized in systems containing low amount of SO2.
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页码：395 / 401
页数：6
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