中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (3): 72-74.

• 研究论文 • 上一篇    下一篇

季铵盐催化合成端烯丙基聚氧化烯大单体

李洪启   

  1. 中国科学院兰州化学物理研究所 兰州 730000
  • 收稿日期:1993-09-08 修回日期:1993-11-30 出版日期:1994-06-10 发布日期:1994-06-10

Catalytic Synthesis of Allyl Terminated Polyoxyalkylene by Quaternary Ammonium Salt

Li Hongqi   

  1. Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000
  • Received:1993-09-08 Revised:1993-11-30 Published:1994-06-10 Online:1994-06-10

PDF

332

被引次数

18 | 3

摘要： 用季铵盐作催化剂,由聚氧化乙烯-氧化丙烯嵌段共聚物和烯丙基氯合成了端烯丙基聚氧化烯大单体,考察了催化剂及其用量,溶剂及反应温度,反应时间对反应封端率的影响,确定了最佳反应条件;与Williamson醚合成法比较,季铵盐催化法操作简便安全,并且可以制得封端率高的端烯丙基聚氧化烯大单体。

关键词: 端烯丙基, 聚氧化烯, 大单体, 催化合成, 季铵盐

Abstract: Polyoxyalkylene macromers containing allyl end group were synthesized from polyoxyethylene-polyoxypropylene block copolymers and allyl chloride using tetrabutylammonium bromide as catalyst.The influences of catalysts amounts, solvents and reaction temperature and reaction time on the yield have been studied.The optimum conditions are reported.Compared with the Williamson′s method,this method gave a higher yield of allyl termination in polyoxyalkylene macromer preparation.

Key words: allyl terminated polyoxyalklene macromer, catalytic synthesis, quaternary ammonium salt

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