具有高临界相转变温度的热敏性高分子材料  

Thermosensitive Polymers with Upper Critical Solution Temperature

作　　者：杨卫海[1] 窦红静[1] 孙康[1] 

机构地区：[1]上海交通大学金属基复合材料国家重点实验室,上海200030

出　　处：《华东理工大学学报（自然科学版）》2006年第6期731-735,共5页Journal of East China University of Science and Technology

基　　金：上海市基础研究重大项目(04DZ14002);上海市自然科学基金(05ZR14084)资助项目

摘　　要：介绍了一类具有高临界相转变温度(UCST)的热敏性高分子材料,并对其相转变机理、热敏性影响因素及表征方法做了讨论。UCST类高分子材料的热敏性受到相对分子质量、疏水基团、溶液中的质子受体/给体、电解质等多种因素的影响。当UCST类高分子材料与具有最低临界相转变温度(LCST)的高分子材料共聚后,可得兼具UCST和LCST特点的新型功能材料,拓展了热敏高分子材料的应用领域。Thermosensitive polymers with upper critical solution temperature （UCST） are introduced, which exhibit a high critical phase transition temperature. Their phase transition and the relative factors are discussed. Various factors, such as molecule weight, hydrophobic groups of the chain, proton donor/ acceptor and electrolytes in the solution, can affect the UCST of the polymers. The copolymers of UCST and LCST show a wide flexibility of thermoresponsivity,so that the application of the thermo-responsive polymers can be expanded.

关 键 词：热敏性高分子 UCST 改性 应用 表征 

分 类 号：O63[理学—高分子化学]