高等学校化学学报

高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (9): 1765.

• 研究快报 • 上一篇    下一篇

三乙基铝-乙酰基丙酮金属配合物-水配合体系引发对二氧环己酮(PDO)开环聚合的研究

郭跃海, 王玉忠, 杨科珂, 汪秀丽, 周茜   

  1. 四川大学化学学院, 降解与阻燃高分子材料研究中心, 成都610064
  • 收稿日期:2004-05-21 出版日期:2004-09-24 发布日期:2004-09-24
  • 基金资助:

    教育部跨世纪优秀人才基金和国家“八六三”计划项目(批准号:2002AA322030)资助

Polymerizations of 1,4-Dioxan-2-one Initiated by AlEt3-M(AcAc)n-H2O Systems

GUO Yue-Hai, WANG Yu-Zhong, YANG Ke-Ke, WANG Xiu-Li, ZHOU Qian   

  1. Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, Sichuan University, Chengdu 610064, China
  • Received:2004-05-21 Online:2004-09-24 Published:2004-09-24

PDF (PC)

被引次数

8

关键词: 三乙基铝-乙酰基丙酮钕-水, 开环聚合, 生物降解, 聚对二氧环己酮

Abstract: New initiator systems for the ring-opening polymerization of 1,4-dioxan-2-one (PDO), AlEt3-M(AcAc)n-H2O, where M=Nd, La, Zn, Fe, Co and Ni, were used to initiate the ring-opening polymerization of PDO in bulk, and to synthesize poly(1,4-dioxan-2-one)(PPDO) with high molecular weights within very short reaction time. A high conversion of monomer can be reached. Of all those initiator systems, AlEt 3-Nd(AcAc)3-H2O is the best one. The effects of n(Al):n(Nd) and n(H2O):n(Al) on the polymerization of PDO were investigated. It was found that n(AlEt3): n[Nd(AcAc)3]:n(H2O)=8:1:4 could obtain the best initiating effects. PPDO with a viscosity-average molecular weight of 3.1×105 can be obtained when n(PDO):n[AlEt3-Nd(AcAc)3-H2O] is 2 000, the reaction temperature 80℃, and the reaction time 24 h. Meanwhile, a high conversion of 94.7% can be reached.

Key words: AlEt 3-Nd(AcAc)3-H2O, Ring-opening polymerization, Biodegradation, Poly(1,4-dioxan-2-one)

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