Reversible addition-fragmentation transfer miniemulsion polymerization of styrene induced by γ-ray irradiation

被引：4
|
作者：
Zhou, Guangtian [1 ]
Ma, Yi [2 ]
机构：
[1] Shandong Inst Light Ind, Sch Food & Bioengn, Jinan 250353, Shandong, Peoples R China
[2] Shandong Inst Light Ind, Sch Chem Engn, Jinan 250353, Shandong, Peoples R China
来源：
CHEMISTRY LETTERS | 2008年 / 37卷 / 08期
关键词：
D O I：
10.1246/cl.2008.850
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Reversible addition-fragmentation transfer (RAF-F) polymerization of styrene (St) induced by gamma-ray irradiation has been successfully performed in miniemulsion using 2-phenylprop-2-yl phenyldithioacetate (PPPDTA) as chain-transfer agent (CTA). The results show that the polymerization bears all the characteristics of controlled/living free-radical polymerizations, Such as the number-average molecular weight (M,) increasing, linearly with monomer conversion, molecular weight (MW) being controlled and the molecular weight distribution (MWD) being narrow (polydispersity index (PDI) <= 1.30). Moreover. this system does not show a significant decrease in polymerization rate as compared to a conventional miniemulsion polymerization.
引用
收藏
页码：850 / 851
页数：2
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