中文摘要：

以辛酸亚锡为催化剂,甲基丙烯酸羟乙酯(HEMA)为共引发剂引发消旋-丙交酯(D,L-LA)开环聚合,制备了末端双键功能化的聚乳酸大分子单体(PLA-HEMA);在此基础上,考察了大分子单体与N-乙烯基吡咯烷酮(NVP)的溶液自由基共聚合反应,并初步研究了共聚单体摩尔比和PLA支链长度对合成的两亲性接枝共聚物性能的影响.结果表明,随大分子单体投料量和PLA支链长度增大,共聚物膜的拉伸强度和模量增大,而亲水性有所下降.

英文摘要：

Poly(D,L-lactide) macromonomers with the functional end double bond were first prepared by bulk ring-opening polymerization of D,L-lactide(D,L-LA)(using) stannous 2-ethyl hexanoate(Sn(Oct)_2) as a catalyst,and 2-hydroxyethyl(metha-)crylate(HEMA) as a co-initiator.Then,the amphiphilic graft copolymers from(macro-)monomers and N-vinyl pyrrolidone(NVP) were obtained by solution free radical copolymerization,the effects of the co-monomer molar ratio and the length of the polylactide(PLA) branched chain on the p...