Huang Zichen, Chen Fan, Wang Qi, Zhang Dingxiang, Wang Hongdong, Zhang Xiacong
Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China.
School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China.
Polymers (Basel). 2024 Dec 12;16(24):3470. doi: 10.3390/polym16243470.
A series of novel amphiphilic alternating CPEG copolymers were synthesized through an amine-epoxy click reaction comprising aliphatic amine and polyethylene glycol diglycidyl ether (PEGDE). These polymers were characterized in detail via nuclear magnetic resonance (NMR), gel permeation chromatography (GPC), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA) to confirm the successful synthesis. Due to their amphiphilic structure, these polymers display thermoresponsiveness, with tunable cloud points (Tcps) that are adjustable from 20.8 °C to 46.8 °C by altering the side-chain length of the aliphatic amine, varying the mixing ratios of copolymers, the solution's pH, and salt additions. This tunable thermoresponsive behavior positions CPEG copolymers as promising candidates for a range of functional material applications.
通过包含脂肪族胺和聚乙二醇二缩水甘油醚（PEGDE）的胺-环氧点击反应，合成了一系列新型两亲性交替CPEG共聚物。通过核磁共振（NMR）、凝胶渗透色谱（GPC）、傅里叶变换红外光谱（FTIR）和热重分析（TGA）对这些聚合物进行了详细表征，以确认合成成功。由于其两亲性结构，这些聚合物表现出热响应性，通过改变脂肪族胺的侧链长度、改变共聚物的混合比例、溶液的pH值和添加盐，可以将浊点（Tcps）从20.8°C调节到46.8°C。这种可调节的热响应行为使CPEG共聚物成为一系列功能材料应用的有前途的候选材料。
