摘要
采用质子转移聚合法成功制备了超支化环氧树脂,并通过丙烯酸对其端基进行化学改性合成了一种新型的超支化环氧丙烯酸酯,采用FTIR、1H NMR对产物结构进行了表征。通过控制投料比及测定产物酸值来监测反应进行的程度,使生成的超支化环氧丙烯酸酯中既含有环氧基又含有碳碳双键,使之兼具阳离子型光聚合与自由基型光聚合的协同作用。测试了超支化聚合物在氯仿中的紫外-可见光谱和荧光发射光谱,超支化环氧树脂和超支化环氧丙烯酸酯的荧光发射波谱出峰位置分别为314 nm和311 nm。研究表明,超支化聚合物具有较强的荧光性能,作为光固化材料在光学、医疗器件、防伪等领域具有潜在的应用价值。
Hyperbranched epoxy resin （HBEP） was synthesized by proton transfer polymerization. And a novel structure hyperbranched epoxy acrylate （HBEA） containing both epoxy group and carbon-carbon double bond was synthesized by acrylic modified the HBEP. The structures of the polymer were character- ized by FTIR and 1H NMR. The extent of the reaction was monitored by controlling the molar ratio and measuring the acid value. The results showed that the HBEA contained both epoxy group and carbon-car- bon double bond which can improve the performance of the material by the synergistic effect of the cation- ic photopolymerization and the radical photopolymerization. Hyperbranched polymers were characterized in chloroform by UV-Vis spectra and fluorescence emission spectra. The photoluminescent behavior renders these materials highly interesting as UV curing films in optical devices like light-emitting diodes and UV light detection systems as well as in anticounterfeiting applications.
出处
《应用化工》
CAS
CSCD
北大核心
2015年第5期861-864,870,共5页
Applied Chemical Industry
基金
辽宁省博士启动基金项目(20111066)
