星形两亲性聚己内酯的合成及水中分散行为的研究  

Synthesis and particle size disperision of star-shaped amphiphilic poly(ε-caprolactone)s in water

作　　者：戴金续[1] 杨锐[2] 樊国栋[2] 张春梅[2] 

机构地区：[1]西北政法大学经济管理学院,西安710063 [2]陕西科技大学,教育部轻化工助剂化学与技术重点实验室,西安710021

出　　处：《化工新型材料》2012年第8期73-75,共3页New Chemical Materials

基　　金：陕西省科技攻关项目(2008K07-32);陕西省教育厅重点实验室重点科研计划项目(09JS061)

摘　　要：以辛酸亚锡为催化剂,季戊四醇引发ε-己内酯开环聚合制得星形聚己内酯,再以甲苯二异氰酸酯(TDI)为偶联剂,将聚乙二醇引入到星形聚己内酯的端基上,从而得到星形两亲性聚合物。采用FTIR、1 H-NMR对聚合物的结构进行了表征。利用熔融分散的方法,两亲性聚合物在水中自组装形成了聚合物纳米粒子,采用Zeta电位仪对聚合物的纳米粒子的性质进行了考察。A series of star-shaped poly（ε-caprolactone）s were prepared by ring opening polymerization with pentaerythritol/stannous octoate as the initiator system, and then TDI as the couple agent, star-shaped amphiphilic polymer was synthesized by covalently attaching polyethylene glycol（PEG）to the ends of star-shaped poly（ε-caprolactone）s. The properties of the polymer were tested by using FFIRand 1H-NMR. Amphiphilic polymer nano-particles were pepared by fusing dispersion. The zeta potential analyzer was adopted to characterize the properties of nano-particles.

关 键 词：星形两亲聚合物 星形聚己内酯 聚乙二醇 甲苯二异氰酸酯(TDI) 

分 类 号：O633.14[理学—高分子化学]