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温敏性双亲二元共聚物的研制
引用本文:周莲,刘晓亚,陈明清,陆卞.温敏性双亲二元共聚物的研制[J].江南大学学报(自然科学版),2004,3(1):70-73,78.
作者姓名:周莲  刘晓亚  陈明清  陆卞
作者单位:江南大学,化学与材料工程学院,江苏,无锡,214036
基金项目:国家自然科学基金项目(50273006)资助课题.
摘    要:用己内酯改性丙烯酸酯和丙烯酸,通过自由基聚合制备了具有温敏性的双亲二元共聚物(PAFn),PAFn在选择性溶剂中自组装得到了聚合物纳米胶束溶液.对PAFn及胶束进行了一系列表征,研究了聚合物浓度、单体比、n值的变化等对胶束粒径的影响。同时研究了它们在醇/水介质中的相转变行为,荧光测试显示,通过自组装途径获得的胶束在醇/水介质中存在一个温度敏感区,具有明显的相转变温度.

关 键 词:温敏性  双亲  相转变温度  胶束
文章编号:1671-7147(2004)01-0070-04

Study on Amphiphilic Temperature-Sensitive Binary Copolymer and Its Phase Transition Behavior
ZHOU Lian,LIU Xiao-ya,CHEN Ming-qing,LU Bian.Study on Amphiphilic Temperature-Sensitive Binary Copolymer and Its Phase Transition Behavior[J].Journal of Southern Yangtze University:Natural Science Edition,2004,3(1):70-73,78.
Authors:ZHOU Lian  LIU Xiao-ya  CHEN Ming-qing  LU Bian
Abstract:The amphiphilic binary copolymer with temperature-sensitive property was synthesized by free radical polymerization with FA_n and AA. A series of micelle solutions were prepared in selective solvents by means of self-assembly and characterized. The effects of the concentration of polymer solution, the ratio of monomers, the value of n on the sizes of micelles were studied. Furthermore, the results of spectrophotometer showed that the micelle solution has a scale of thermosensitive property in ethanol/water mixture, and it appears an apparent phase-transition phenomenon at the Upper Critical Solution Temperature (UCST).
Keywords:temperature-sensitive  amphiphilic  phase transition temperature  micelles
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