星形嵌段共聚物PCL-b-PNVCL的合成  

Synthesis of Star PCL- b- PNVCL Amphiphilic Block Copolymers

作　　者：李杰[1] 杨耀宗[1] 刘玲琪[1] 王德强[1] 毕韵梅[1] 

机构地区：[1]云南师范大学化学化工学院,云南昆明650092

出　　处：《广州化工》2014年第6期3-4,10,共3页GuangZhou Chemical Industry

基　　金：国家自然科学基金(20864003;21264017)资助项目

摘　　要：用季戊四醇引发ε-己内酯(ε-CL)开环聚合得到四臂星形PCL,将其末端羟基转变为O-乙基黄原酸酯,以此为大分子链转移剂调控N-乙烯基己内酰胺(NVCL)的RAFT聚合,合成了以季戊四醇为核、以PCL为内臂、PNVCL为外臂的两亲性星形嵌段共聚物,用1H NMR谱证明了所得聚合物的结构。Four - arm star poly （ ε-caprolactone） （PCL） was first synthesized by the ring - opening polymerization （ROP） of s -caprolactone （ε-CL） using pentaerythritol as initiator. The resulting hydroxyl end group was converted to a macro - chain transfer end group （ 0 - ethyl xanthate）, yielded PCL - CTA used as macro - chain transfer agent for the xanthatemediated RAFT polymerization of NVCL. Finally, well - defined amphiphilic four - arm star diblock copolymers with pentaerythritol as core, PCL and PNVCL structure was characterized by 1H NMR spectra. as fist and second arm were successfully synthesized. Its

关 键 词：聚(ε-己内酯) 聚(N-乙烯基己内酰胺) 开环聚合 RAFT聚合 星形嵌段共聚物 

分 类 号：O63[理学—高分子化学]