阴离子型水性聚氨酯的制备及其性能研究  

Preparation and properties of anionic waterborne polyurethane

作　　者：龚梅[1] 张利[1] 黄棣[1] 杜晶晶[1] 周名兵[1] 李玉宝[1] 

机构地区：[1]四川大学分析测试中心,纳米生物材料研究中心,四川成都610064

出　　处：《功能材料》2012年第13期1766-1769,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50903052);国家重点基础研究发展计划(973计划)资助项目(2012CB933902)

摘　　要：以聚四氢呋喃醚(PTMG)二醇和甲苯二异氰酸酯(TDI)为原料,2-羟甲基丙酸(DMPA)为亲水扩链剂,通过自乳化方法初步合成了聚氨酯乳液。将乳液成膜,通过红外、热重、透射电镜、力学测试等对材料的化学组成与微观结构进行表征,进一步通过体外细胞实验对材料与细胞的相互作用进行评价。结果表明制备的水性聚氨酯乳液粒径均匀,热稳定性良好,具有一定的形状记忆功能,对细胞无毒性,相容性好,对细胞的生长繁殖几乎无影响,是一种具有广阔应用前景的生物材料。Based on polyether （PTMG1000）, toluene-diisoeyanate （TDI） and dimethoxy acid （DMPA）, a water- borne polyurethane emulsion was synthesized by self-emulsion method. The structure and properties of the sam- ple were investigated by ATR-IR, TG, TEM and mechanical test. The results revealed that urea linkage was formed by the reaction of isocyanates with hydroxyl; the samples synthesized had high thermal stability and a uniform distribution of particle size was achieved in waterbone polyurethane emulsion. It was also found that the waterborne polyurethane had a good shape memory function. Its cytotoxicity was also tested and the result showed that it had good cytocompatibiiity.

关 键 词：水性聚氨酯 自乳化 形状记忆 细胞相容性 

分 类 号：TB332[一般工业技术—材料科学与工程]