共聚物Poly(DMAEMA-co-TPE-a)的合成及pH敏感荧光多孔光纤制备  

Synthesis of Copolymer Poly(DMAEMA-co-TPE-a) and Preparation of pH-Sensitive Fluorescent Porous Fiber

作　　者：蒋姗[1] 黄天涯 王伟[1] 王克敏[1] 俞强[1] 

机构地区：[1]常州大学材料科学与工程学院,江苏常州213164

出　　处：《功能高分子学报》2017年第1期103-109,共7页Journal of Functional Polymers

基　　金：国家自然科学青年基金(21304011)

摘　　要：将甲基丙烯酸N,N-二甲氨乙酯(DMAEMA)和微量荧光单体4-丙烯酰氧基四苯乙烯(TPE-a)经自由基共聚合制备了共聚物Poly(DMAEMA-co-TPE-a)(PDT),并通过引入交联剂N,N-亚甲基双丙烯酰胺(Bis)和致孔剂N,N-二甲基甲酰胺(DMF)制备了pH敏感荧光多孔光纤。采用FT-IR、~1 H-NMR、TG和SEM表征了产物的结构,研究了产物的荧光和pH响应性能。研究表明,共聚物PDT具有聚集诱导发光(AIE)效应,并具有较好的pH响应性能;当单体、交联剂和致孔剂的物质的量之比为60∶1∶40时,制备的pH敏感荧光多孔光纤具有较好的耐热性能、内部结构和pH响应性能。Poly（DMAEMA-co-TPE-a）（PDT） was synthesized by radical copolymerization of N-（2-（dimethylamino）ethyl）-methacrylamide（DMAEMA） and trace fluorescent monomer 4-acryloyl tetraphenylethylene（TPE-a）.The pH-sensitive fluorescent porous fiber was then prepared via introducing cross-linking agent methylene-bis-acrylamide（Bis）and porogenic agent N,N-dimethylformamide（DMF）into the system.The products were characterized by FT-IR,~1 H-NMR,TG and SEM.The fluorescent property and pH-response performance of products were also studied.Results show that PDT owns aggregation-induced emission（AIE）effect and good pH-response performance.When the molar ratio of monomer,cross-linking agent and porogenic agent is 60∶1∶40,the obtained fiber showed a satisfing heatresistant quality and pH-response performance.

关 键 词：PH敏感 自由基共聚合 聚集诱导发光效应 荧光 

分 类 号：TQ332[化学工程—橡胶工业]