| 星形嵌段共聚物PCL-b-PNVCL的合成 |
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| 引用本文： | 李 杰,杨耀宗,刘玲琪,王德强,毕韵梅.星形嵌段共聚物PCL-b-PNVCL的合成[J].广州化工,2014(6):3-4,10. |
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| 作者姓名： | 李 杰 杨耀宗 刘玲琪 王德强 毕韵梅 |
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| 作者单位： | 云南师范大学化学化工学院,云南昆明650092 |
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| 基金项目： | 国家自然科学基金（20864003,21264017）资助项目. |
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| 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。
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| 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 |
Synthesis of Star PCL -b -PNVCL Amphiphilic Block Copolymers |
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| Affiliation: | LI Jie , YANG Yao - zong , LIU Ling - qi , WANG De - qiang , BI Yun - mei (College of Chemistry and Chemical Engineering, Yunnan Normal University, Yunnan Kunming 650092, China) |
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| Abstract: | 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 |
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| Keywords: | poly （ ε- caprolactone） poly （ N - vinylcaprolactam） ring - open polymerization reversible addition fragmentation chain transfer （RAFT） polymerization star - shaped polymers |
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