高等学校化学学报

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (12): 1277.

• 论文 • 上一篇    下一篇

聚酰胺-聚ε-己内酯多嵌段共聚物合成、表征及反应动力学的研究

徐凌云, 王辉   

  1. 复旦大学材料科学研究所
  • 收稿日期:1987-05-04 出版日期:1988-12-24 发布日期:1988-12-24
  • 通讯作者: 徐凌云
  • 基金资助:

    中国科学院科学基金

Studies on the Synthesis, Characterization and Polymer-ization Kinetics of Polyamide-poly-Ⅲ-caprolactone Multiblock Copolymers

Xu Linyun, Wang Hui   

  1. Institute of Material Science of Fudan University, Shanghai
  • Received:1987-05-04 Online:1988-12-24 Published:1988-12-24

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摘要： 本文采用双羧基尼龙1010预聚物和双羟基聚δ-己内酯预聚物经熔融缩聚制得了不同嵌段链长度和不同软硬链段含量的尼龙1010-聚δ-己内酯多嵌段共聚物,并通过分子量(VPO)、核磁共振谱(1HNMR)和热分析法(DSC)对该共聚物进行表征。同时,对尼龙1010和聚δ-已内酯熔融缩聚反应动力学作了研究。结果表明,该反应为二级反应,活化能为ΔΕ=58.2kcal/mol,反应常数K=1.36×1022·e-2.93×104/T。

关键词: 尼龙1010, 聚&delta, -己内酯, 熔融共缩聚反应

Abstract: The polyamide-poly-Ⅲ-caprolactone multiblock copolymers consisting of nylon 1010 as hard segments and poly-Ⅲ-caprolactone as soft segments were synthesized from ω,ω'-dicarboxylic nylon 1010 oligomers with ω,ω'-dihydroxy poly-e-caprolactone oligomers in the presence of catalyst by melt polycondensation. These block copolymers were characterized by molecular weight determination,1HNMR and DSC methods. The kinetics of polycondensation of ω,ω'-dicarboxylic nylon 1010 oligomers and ω, ω' -dihydroxy poly-Ⅲ-caprolaetone oligomers has been studied at various temperatures. The experiments showed that the reaction is. of 2nd order, the activation energy ΔE = 58.2 kcal/mol and the reaction kinetic constant K =1.36×l022·e-2.93×104/T.

Key words: Nylon 1010, Poly-ε-caprolactone, Melt polycondensation

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