苯并15-冠-5咪唑卡宾催化ε-己内酯开环聚合研究

Exploration on Ring-opening Polymerization of ε-Caprolactone by Benzo-15-crown-5 Imidazol-2-ylidene

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摘要首次合成了苯并15-冠-5咪唑卡宾(B15C5imY)催化剂,用苯甲醇(BnOH)作为引发剂,催化ε-己内酯(ε-CL)开环聚合,详细研究了B15C5imY/BnOH体系在不同聚合条件下对聚合反应的影响,通过1 H NMR和IR等分析手段对所得聚合物结构进行了表征分析,并推测了聚合机理. Benzo-15-crown-5imidazol-2-ylidene was firstly synthesized and used to catalyze the ring-opening polymerization ofε-caprolactone（ε-CL）using benzyl alcohol（BnOH）as an initiator.The influences of benzo-15-crown-5 imidazol-2-ylidene on polymerization under different conditions were explored in detail.The polymers were characterized and analyzed by 1-H NMR and IR spectra.The results showed that the polymerization proceeded through ＂monomer-activated＂mechanism.

作者李倩茹王艳

机构地区山西师范大学化学与材料科学学院

出处《内蒙古大学学报（自然科学版）》 CAS 北大核心 2016年第2期173-179,共7页 Journal of Inner Mongolia University：Natural Science Edition

基金山西省基础研究计划项目(2015011029) 山西省高校科学技术创新项目(No.20120016) 山西省研究生教育创新项目(2015BY38) 山西师范大学自然科学基金项目(ZR1409)

关键词苯并15-冠-5咪唑卡宾 Ε-己内酯开环聚合 benzo-15-crown-5imidazol-2-ylidene ε-caprolactone ring-opening polymerization

分类号 O632.1 [理学—高分子化学]

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内蒙古大学学报（自然科学版）

2016年第2期

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苯并15-冠-5咪唑卡宾催化ε-己内酯开环聚合研究

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