Duan Miles Pamueles, Zhou Zhirong, Zhang Tan
Division of Natural and Applied Sciences, Duke Kunshan University, Kunshan 215316, China.
Polymers (Basel). 2023 Oct 13;15(20):4081. doi: 10.3390/polym15204081.
Homopolymers of n-butyl acrylate, methyl methacrylate, styrene, and their random copolymers were prepared via interface-initiated polymerization of emulsion gels at 20 °C. The polymerization was conducted in a free radical polymerization manner without inert gas protection. Compared with the polymers synthesized at 60 °C, the polymerization of emulsion gels at 20 °C produced homo- and copolymers with a higher molecular mass and a narrower molecular mass distribution. The polydispersity indices for the polymers synthesized at 20 °C were found to be between 1.12 and 1.37. The glass transition temperatures for the as-synthesized butyl acrylate copolymers agree well with the prediction from the Gordon-Taylor equation. Interface-initiated room-temperature polymerization is a robust, energy-saving polymerization technique for synthesizing polymers with a narrow molecular mass distribution.
通过乳液凝胶在20℃下的界面引发聚合制备了丙烯酸正丁酯、甲基丙烯酸甲酯、苯乙烯的均聚物及其无规共聚物。聚合反应以自由基聚合方式进行，无需惰性气体保护。与在60℃下合成的聚合物相比，20℃下乳液凝胶的聚合产生了具有更高分子量和更窄分子量分布的均聚物和共聚物。发现20℃下合成的聚合物的多分散指数在1.12至1.37之间。合成的丙烯酸丁酯共聚物的玻璃化转变温度与Gordon-Taylor方程的预测结果吻合良好。界面引发室温聚合是一种用于合成具有窄分子量分布聚合物的强大、节能的聚合技术。
