中华医学超声杂志

应用化学 ›› 1995, Vol. 0 ›› Issue (6): 68-70.

• 研究论文 • 上一篇    下一篇

Ln(acac)3/BuMgCl催化聚合甲基丙烯酸甲酯、环氧丙烷和ε-己内酯

孙俊全   

  1. 浙江大学高分子科学与工程系, 杭州 310027
  • 收稿日期:1995-01-18 修回日期:1995-07-04 出版日期:1995-12-10 发布日期:1995-12-10
  • 基金资助:
    国家自然科学基金和中国科学院长春应用化学研究所稀土化学与物理开放实验室资助项目

Polymerization of Methyl Methacrylate, Propylene Oxide and Caprolactone by Catalysts Ln(acac)3/BuMgCl

Sun Junquan   

  1. Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027
  • Received:1995-01-18 Revised:1995-07-04 Published:1995-12-10 Online:1995-12-10

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摘要： 在开拓稀土配位聚合反应的研究中,已成功地催化聚合双烯烃、炔烃、环氧烷烃、丙烯酸酯和丙交酯等,其催化体系均为稀土化合物与烷基铝组成的配位催化剂.为进一步推进稀土配位催化聚合反应研究,本文首次以格氏试剂BuMgCI代替烷基铝,分别与Y和Nd,Sm的乙酰基丙酮配合物组成新型配位催化剂,初步研究了催化甲基丙烯酸甲酯cMMA>、环氧丙烷(P0)和ε-己内酯(ε-Cl)的聚合特性.

关键词: 甲基丙烯酸甲酯, 环氧丙烷, ε-己内酯, 稀土化合物, 格氏试剂, 配位催化剂, 聚合反应

Abstract: The polymerization of methyl methacrylate(MMA), propylene oxide(PO)and ε-caprolactone(ε-Cl)catalyzed by Ln(acac)3/BuMgCl (Ln=Y, Nd, Sm)has been studied.The results show that the polymerization conversion of MMA in petroleum ether was higherthan that in aromatic hydrocarbons and polar solvents, and the polymerization conversion ofε-Cl in petroleum ether and toluene reached 100%.The molecular weight distribution param-eters of PMMA, PPO and P(ε-Cl)were 1.37,1.39 and 2.10 respectively.

Key words: methyl methacrylate, propylene oxide, caprolactone, rare earth compound, Grig-nard reagent, coordination catalyst, polymerization

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