水溶液室温自干成膜制备荧光形状记忆高分子材料  

Preparation of fluorescent shape memory polymer materials by self-drying membrane in aqueous solution at room temperature

作　　者：林娜 边江海 宋雨方 俞其洪 张洪吉 LIN Na;BIAN Jianghai;SONG Yufang;YU Qihong;ZHANG Hongji(School of Chemical Materials Engineering,Jiangnan University,Wuxi 214122,Jiangsu,China;Jiangsu Tianyin Chemical Ltd.Co.,Wuxi 214262,Jiangsu,China)

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214122 [2]江苏天音化工有限公司,江苏无锡214262

出　　处：《精细化工》2021年第6期1103-1108,共6页Fine Chemicals

基　　金：国家自然科学基金项目(BK20150135)。

摘　　要：以甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)、双丙酮丙烯酰胺(DAAM)、丙烯酸(AA)为主要原料制备了聚丙烯酸酯双亲性共聚物(PMBDA),PMBDA与荧光素(FM)在水中共组装形成水性荧光高分子乳液(PMBDA/FM共组装乳液)。该乳液与己二酸二酰肼(ADH)均匀混合并于室温干燥固化后,即得PMBDA/FM-ADH膜。通过GPC、^(1)HNMR、纳米粒度仪、UV-Vis和荧光光谱仪等对PMBDA共聚物、PMBDA/FM共组装乳液和PMBDA/FM-ADH膜的结构和性能进行了表征。结果表明,PMBDA/FM共组装乳液的粒径在100~200 nm间,荧光强度在一定范围内与荧光素的添加量相关;PMBDA/FM-ADH薄膜在紫外灯下发出均匀的绿色荧光,荧光发射峰值波长(λ_(m))516 nm,且在温度高于玻璃化转变温度(31.86℃)时的形状回复率约100%。Amphiphilic polyacrylate copolymer(PMBDA) was prepared by using methyl methacrylate(MMA), butyl acrylate(BA), diacetone acrylamide(DAAM) and acrylic acid(AA) as monomers. The macromolecule PMBDA was able to co-assemble with fluorescein(FM) in water to form water-based fluorescent emulsion(PMBDA/FM co-assembled emulsion). Then, the PMBDA/FM co-assembled emulsion mixed uniformly with adipic acid dihydrazide(ADH) at room temperature and solidified to obtain fluorescent shape memory material(PMBDA/FM-ADH film). The structure and properties of copolymer PMBDA, PMBDA/FM co-assembled emulsion and PMBDA/FM-ADH film were characterized by GPC, ^(1)HNMR,nanometer particle analyzer, UV-Vis, fluorescence spectrometer and other instruments. The results showed that the particle size of the co-assembled emulsion was in the range of 100~200 nm. The fluorescence intensity of the emulsion was related to the additive amount of fluorescein within a certain range. The film could emit a uniform green fluorescence under ultraviolet light irradiation with a fluorescence emission peak wavelength(λ_(m)) of 516 nm. Moreover, the shape recovery rate was almost 100% when temperature was higher than glass transition temperature(31.86 ℃).

关 键 词：双亲性 共组装 环保友好 荧光 形状记忆 功能材料 

分 类 号：TQ317[化学工程—高聚物工业]