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.
出处
《应用化学》
CAS
CSCD
北大核心
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)
