N‐Oxyl‐控制radikalische Lösungspolymerisation Styrol的

Marco Drache, A. Koch, G. Schmidt-Naake
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引用次数: 2

摘要

2,2,6,6-四甲基哌啶- n -氧基(TEMPO)控制的自由基溶液聚合(溶剂:苯甲醚)使得合成高分子量嵌段共聚物和聚合固体单体成为可能。先前用TEMPO终止的聚苯乙烯作为宏观引发剂,然后在不同的苯乙烯/苯甲醚比例、温度和引发剂浓度(引发剂:过氧化二氨基)下进行聚合。此外,采用模型计算研究了基于引发剂的加速,并模拟了所得聚合物的产物组成。在溶液和散装中控制自由基聚合可以通过添加剂量引发剂以相当的聚合速率进行。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
N‐Oxyl‐kontrollierte radikalische Lösungspolymerisation von Styrol
The radical solution polymerization (solvent: anisole) controlled by 2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPO) makes possible to synthesize block copolymers with higher molecular weights, as well as to polymerize solid monomers. Polystyrene previously terminated by TEMPO was employed as a macroinitiator, which was then polymerized at various styrene/anisole ratios, temperatures, and initiator concentrations (initiator: dicumyl peroxide). In addition, model calculations were employed to study the initiator-based acceleration and to simulate the product composition of the resulting polymer. The controlled radical polymerizations in solution and in bulk can be performed through dosed initiator addition with comparable rates of polymerization.
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