Transesterification of poly(ethyl‐α‐hydroxymethacrylate) prepared via reversible addition–fragmentation chain transfer polymerization
Transesterification of poly(ethyl‐α‐hydroxymethacrylate) prepared via reversible addition–fragmentation chain transfer polymerization
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可逆加成断裂链转移聚合制备聚(α-羟基甲基丙烯酸乙酯)的酯交换反应
DOI：
10.1002/pola.20991
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
C. Barner‐Kowollik
中科院分区：
文献类型：
--
作者：
T. Y. Chiu;M. Stenzel;T. P. Davis;C. Barner‐Kowollik
研究了可逆加成-断裂链转移聚合法制备双功能单体聚（乙基-α-羟基甲基丙烯酸酯）的分子内酯交换反应。由于杂化行为的发生，形成的聚合物分子量比理论预测的要高。在90,110和150℃三种温度下进行酯交换反应。结果表明，随着温度的升高，正反应速率增大，反反应速率减小。
Intramolecular transesterification of a bifunctional 1,1-disubstituted monomer, poly(ethyl-α-hydroxymethacrylate), prepared via reversible addition-fragmentation chain transfer polymerization was analyzed. The molecular weight of the polymer formed was higher than that predicted theoretically, because of the occurrence of hybrid behavior. The transesterification was carried out at three temperatures such as 90, 110, and 150°C. It was found that with increasing temperature, the rate of the forward reaction increases and the rate of back reaction decreases.