Molecular-Recognition and Thermo-Responsive Composite Smart Polymeric Materials

作者：Xie Rui; Yang Mei; Cheng Changjing; Jiang Jing; Chu Liangyin^*

来源：Progress in Chemistry, 2012, 24(2-3): 195-202.

• smart materials
• poly(N-isopropylacrylamide)
• beta-cyclodextrin
• linear polymers
• microspheres
• smart membranes

Development of dual-stimuli-responsive and multi-stimuli-responsive smart polymeric materials becomes more and more important. The recent progresses in molecular-recognition and thermo-responsive composite smart linear polymers, smart microspheres and smart membranes based on poly(N-isopropylacrylamide) (PNIPAM) and beta-cyclodextrin (beta-CD) are reviewed in detail. The different kinds of smart materials are prepared by the same reaction mechanism, namely polymerization of N-isopropylacrylamide (NIPAM) with glycidyl methacrylate (GMA) into poly(N-isopropylacrylamide-co-glycidyl methacrylate) (PNG) polymer at first, followed by introduction of modified mono-6-deoxy-6-ethylenediamino-beta-cyclodextrin (ECD) or mono-6-deoxy-6-hexnediamino-beta-cyclodextrin (HCD) onto PNG polymer by virture of reaction between primary amino groups and epoxy groups. The effects of preparation conditions, the molar ratio of NIPAM to GMA, grafting yields, the types and concentrations of guest molecules on the thermo-responsibility and molecular-recognition characteristics of different composite smart polymeric materials are discussed. Moreover, the applications of composite smart polymeric membranes in affinity separation, controlled release and chrial separation are also discussed. The significance and future of molecular-recognition and thermo-responsive composite polymeric materials are commented.

• 出版日期2012-3-24
• 单位四川大学