文献类型：期刊文献

英文题名：Preparation and properties of novel ultraviolet-cured waterborne polyurethanes

作者：Fang, Zhou[1,2];Zhou, Meng[1,2];Zhong, Jianfeng[1,2];Qi, Yuanchun[1,2];Li, Lingling[1,2];Dong, Qingzhi[1,2]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China

年份：2013

卷号：25

期号：6

起止页码：668

外文期刊名：HIGH PERFORMANCE POLYMERS

收录：;EI(收录号：20133616694574);WOS:【SCI-EXPANDED(收录号:WOS:000323431500007)】；

语种：英文

外文关键词：waterborne polyurethane; anionic; ionic soft segment; imide; ultraviolet-cured; properties

摘要：A new ultraviolet (UV)-cured waterborne polyurethane (WPU) mainly composed of ionic soft segments, imide groups, and a new water-soluble UV-cured cross-linking agent containing both C=C bond and carboxy group was prepared. The ionic soft segments were prepared by 1,6-hexamethylene diisocyanate , poly(propylene glycol)-600, and dimethylol butanoic acid. The imide groups were introduced into polyurethane by extending them with pyromellitic dianhydride (PMDA). The new water-soluble UV-cured cross-linking agent (MLGLY) was synthesized by hydrophilic maleic anhydride and glycerol oligomer. The particle size and the viscosity of the new anionic WPU as well as the water swelling, gel content, mechanical properties, and thermal stability of the UV-cured WPU cast films were investigated. The results showed that the best performance of WPU was obtained with 0.024mol of PMDA and 5wt% of MLGLY.