Rate enhancement of nitroxide-mediated living free-radical polymerization by continuous addition of initiator
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- 作者：He ; Junpo ; Chen ; Jingmin ; Li ; Li ; Pan ; Jingyun ; Li ; Chengming ; Cao ; Jizhuang ; Tao ; Yuefei ; Hua ; Fengjun ; et. al.
- 关键词：Nitroxide-mediated living free-radical polymerization ; Kinetics ; Molecular weight distribution
- 刊名：Polymer
- 出版年：2000
- 出版时间：June, 2000
- 年：2000
- 卷：41
- 期：12
- 页码：4573-4577
- 全文大小：114 K
文摘
A new technique, which involves the continuous addition of a small amount of radical initiators, was developed with the assistance of computer simulation to increase the rate of nitroxide-mediated living free-radical polymerization. Using this method, the polymerization rate of styrene in the presence of 4-hydroxy-2,2,6,6-tetramethyl piperidinyl-1-oxy was increased more than 3-fold compared to that with one-batch addition of initiator, while the molecular weight and distribution remain the same, respectively, at higher monomer conversion.