【作者】 付皓； 李赛； 李洁华； 谢兴益； 樊翠容； 何成生； 钟银屏；

【Author】 Fu Hao’ Li Sai Li Jiehua Xie Xingyi Zhong Yinping,1(Dept. of Polymer Science &. Materials, Sichuan university, Chengdu 610065) 2 (Chengdu Organic Chemistry Institute, Chinese Academy of Sciences, Chengdu 610041)

【机构】 四川大学高分子材料系生物医学工程专业； 中国科学院成都有机化学研究所；

【摘要】 根据PU工业的发展趋势和现代医用器械的需求,我们合成了以4,4’-二环己基甲烷二异氰酸酯(HM-DI)和异佛尔酮二异氰酸酯(IPDI),聚乳酸(PLA),ε-己内酯(PCL),双羟甲基丙酸(DMPA),三乙胺(TEA)等为原料的具有无毒降解产物的生物降解型水性聚氨酯。研究了聚乳酸(PLA),ε-己内酯(PCL)的配比对产品力学性能,降解速率等性能的影响,并对比了两种二异氰酸酯乳液的分散性和稳定性。更多还原

【Abstract】 Polyurethane anionomer dispersions. from which the film can biodegrade, were prepared from hy-drogenated diphenylmethane diisocyanate ((HMDI) or isophorone diisocyanate (IPDI), poly (lactic acid)(PLA), poly (caprolactone)diol (PCL), dimethylopropionic acid(DMPA). We studied how the proportionality between PLA and PCL influnce on the mechanics ability, biodegradable speed of the PU. And found that IPDI series showed better dispersion ,but less mechanics ability than HMDI series.更多还原