聚醚聚氨酯的光聚合及其产物的性能  

Photopolymerization of Polyether-polyurethane and Properties of the Products

作　　者：黄家贤[1] 李春荣[1] 张敏[1] 蒋艳[1] 晏苏学[1] 黄琴华[1] 栗方星[1] 

机构地区：[1]南开大学化学系,吸附与分离功能高分子材料国家重点实验室,天津300071

出　　处：《应用化学》2002年第1期10-14,共5页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金资助项目 ( 5 95 830 0 1)

摘　　要：在合成含丙烯酰和甲基丙烯酰基团的扩链剂上将聚醚聚氨酯用于扩链功能基化反应 ,制备了可进行感光聚合的柔性材料预聚体 ,其感光交联产物的邵氏硬度与丙烯酰和甲基丙烯酰基团的含量之间存在线性关系 ,讨论了不同组分对材料的硬度、柔性和分辨率方面的贡献 ,为显影溶剂的选择提供了依据 ,确定了不同组成的感光预聚物体系的最佳曝光时间 .Two chain extenders DTH and DTHM (prepared from diethanol amine, toluene diisocyanate and 2-hydroxyethyl acrylate/2-hydroxyethyl methacrylate, respectively) containing acryloyl and methacryloyl group were synthesized. The pre-polymer prepared by reaction of DTH or DTHM with polyether-polyurethane was photopolymerized to give a flexible material. The linear relation was found between the Shore hardness and the methacryloyl group content in the above photo-crosslinked polymer products. The contribution of polymer compositions to the hardness, flexibility and resolution power of the photosensitive materials has been investigated. The results provided for the further preparation of developing solvents. The optimum exposure time for the different photosensitive prepolymer systems has been determined.

关 键 词：聚醚聚氨酯 感光材料 扩链剂 DTH DTHM 合成 光聚合 感光柔性版材 

分 类 号：TQ577.35[化学工程—精细化工]