Original approach to multiblock copolymers via reversible addition-fragmentation chain transfer polymerization
Original approach to multiblock copolymers via reversible addition-fragmentation chain transfer polymerization
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DOI：
10.1002/pola.21985
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发表时间：
2007-06-01
影响因子：
--
通讯作者：
Perrier, Sebastien
中科院分区：
文献类型：
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作者：
Gemici, Hesna;Legge, Thomas M.;Perrier, Sebastien
研究了遥爪聚甲基丙烯酸甲酯（PMMA）共聚物的可逆链转移剂（CTA）聚合。将反应混合物在60 ℃下搅拌24小时，反应后，在甲醇中沉淀之前，通过使聚合物通过碱性氧化铝来纯化聚合物。在反应停止后，将所得产物在甲醇中沉淀，并且使用紫外-可见（UV）光谱来显示所有的二硫代酯基团通过氨解转化为硫醇。
A study was conducted to demonstrate reversible chain-transfer agent (CTA) polymerization of telechelic polymethyl methacrylate (PMMA) copolymers. The reaction was mixture was stirred at 60 C for 24 hours and the polymer was purified by passing it through basic alumina before the precipitation in methanol, after the reaction. The resultant product was precipitated in methanol after the reaction was stopped and ultraviolet-vis (UV) spectroscopy was used to show that all the dithioester groups were converted into thiols through aminolysis.