乙醇浓度及温度响应型智能高分子的制备及其性能  

Preparation and characterization of ethanol-and thermo-sensitive poly (N-isopropylacrylamide- co-N,N-dimethylacrylamide) and poly (N-isopropylacrylamide-co-butyl methacrylate) polymers

作　　者：朱小丽[1] 谢锐[1] 杨眉[1] 褚良银[1] 

机构地区：[1]四川大学化工学院,四川成都610065

出　　处：《化工进展》2008年第6期917-921,共5页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(20674054);教育部科学技术研究重点项目(106131)资助

摘　　要：采用自由基聚合法将亲水单体N,N-二甲基丙烯酰胺(DMAA)和疏水单体甲基丙烯酸丁酯(BMA)分别与N-异丙基丙烯酰胺共聚,从而制备聚(N-异丙基丙烯酰胺-co-N,N-二甲基丙烯酰胺)高分子(PND)和聚(N-异丙基丙烯酰胺-co-甲基丙烯酸丁酯)高分子(PNB)。考察了共聚高分子在水溶液中的相转变温度以及在相转变温度以下对乙醇溶液浓度的响应特性。实验证明亲水单体DMAA和疏水单体BMA能够很好地调节PN共聚高分子的相转变温度和乙醇响应浓度。Poly（N-isopropylacrylamide-co-N,N-dimethylacrylamide）（PND） and poly（N-isopropyl- acrylamide-co-butyl methacrylate） （PNB） were prepared by copolymerizing hydrophilic monomer N,N-dimethylacrylamide （DMAA） or hydrophobic monomer butyl methacrylate （BMA） with the monomer N-isopropylacrylamide （NIPAM）. Both the volume phase transition temperature in water and ethanol-sensitive characteristics at different temperatures below the lower critical solution temperature （LCST） of the copolymers were investigated systematically for the first time. The results showed that temperature- and ethanol-sensitive characteristics of the polymers could be controlled by properly introducing hydrophilic or hydrophobic groups into the copolymers.

关 键 词：聚(N-异丙基丙烯酰胺) 亲疏水性 温度响应特性 乙醇浓度响应特性 

分 类 号：TQ219[化学工程—有机化工]