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Stability and reversibility of thermo-responsive smart gating membranes

Authors： WEI Hong-Bo, XIE Rui*, JU Xiao-Jie, WANG Wei, CHU Liang-Yin

Units： School of Chemical Engineering, Sichuan University, Chengdu 610065

KeyWords： thermo-responsive gating membrane, plasma-induced pore-filling grafting polymerization, atom transfer radical polymerization, thermo-responsive characteristics, reversibility, stability

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2014,34(4):20-25

Abstract：

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.

Funds：

教育部新世纪优秀人才支持计划（NCET-11-0352）、教育部长江学者和创新团队发展计划（IRT1163）和四川大学优秀青年学者科研基金项目（2011SCU04A15）。

AuthorIntro：

韦洪波，（1987-），女，四川内江人，硕士研究生。

Reference：

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