膜科学与技术

温度响应型智能开关膜的“开/关”长效性研究

作者：韦洪波，谢锐，巨晓洁，汪伟，褚良银

单位：四川大学化学工程学院，四川成都 610065

关键词：温度响应型智能开关膜；等离子体诱导填孔接枝聚合法；原子转移自由基聚合法；温敏特性；可逆性；开关长效性

出版年,卷(期):页码： 2014,34(4):20-25

摘要：

系统研究了采用不同接枝方法制备的温度响应型智能开关膜的“开/关”长效特性。采用等离子体诱导填孔接枝聚合法和原子转移自由基聚合法，成功制备了具有聚（N-异丙基丙烯酰胺）（PNIPAM）接枝开关的温度响应型智能开关膜。研究表明，采用不同接枝方法制备的智能开关膜的最佳接枝率范围分别为3.6~6.9%和10.8~26.1%，最佳相对温敏开关系数分别为100和80。60余次“高温-低温”循环水通量实验表明，所制备的温度响应型智能开关膜均具良好的可逆性和“开/关”长效性。实验结果为环境刺激响应开关膜的制备和应用提供了重要的参考。

The stability and reversibility of thermo-responsive smart gating membranes prepared by different grafting methods are investigated systematically. Thermo-responsive smart gating membranes with poly(N-isopropylacrylamide) (PNIPAM) grafting gates are successfully prepared by using both plasma-induced pore-filling grafting polymerization and atom transfer radical polymerization. The optimum ranges of grafting yields of these smart gating membranes prepared by different methods are 3.6~6.9% and 10.8~26.1% respectively. The corresponding optimum relative thermo-responsive gating coefficients are 100 and 80, respectively. Both smart gating membranes show satisfactory reversibility and stability during more than 60 runs of high/low-temperature water flux experiments. The experimental results provide important and valuable guidance for preparation and application of environmental stimuli-responsive gating membranes.

韦洪波，（1987-），女，四川内江人，硕士研究生。

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