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化学学报
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化学学报 ›› 2003, Vol. 61 ›› Issue (9): 1471-1477. 上一篇    下一篇

研究论文

活性酯固化邻甲酚环氧树脂反应机理的研究

田骏翔;李善君   

  1. 复旦大学高分子科学系
  • 发布日期:2003-09-15

Study on Curing Reaction Mechanism of Epoxy Resin with Polyfuctional Active Ester

Tian Junxiang;Li Shanjun   

  1. Key Laboratory of Molecular Engineering of Polymers of Education Ministry, Department of Macromolecular Science, Fudan University
  • Published:2003-09-15

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被引次数

9

采用交叉反应研究在促进剂2-甲基咪唑存在下活性酯固化邻甲酚环氧树脂的反 应机理，用傅立叶转换红外（FTIR）原位测量技术，NMR，气-质联用（GC-MS）等 手段研究了模型化合物的反应动力学，并提出了其反应机理。结果表明，在促进剂 2-甲基咪唑存在下活性酯固化邻甲酚环氧树脂的反应是通过分子内机理进行的。

关键词: 邻甲酚环氧树脂, 促进剂, 咪唑 P, 傅里叶变换, 红外分光光度法, 反应动力学, 反应机理

The curing reaction mechanism of o-cresol novolac epoxy resin using esterified phenol novolac resin as curing agent in the presence of 2- methylimidazole as accelerator was studied by model compound, cross reaction, Fouider transform infrared spectroscopy (FT-IR) , gas chromatography-mass spectrometry (GC-MS) and 'H NMR. The results show that this curing reaction is a first-order kinetic reaction for esterified phenol novolac resin and a zero-order kinetic reaction for o-cresol novolac epoxy resin. During the curing reaction, ester groups were intramolecularly transferred from the esterified phenol novolac resin to the o-cresol novolac epoxy resin.

Key words: o-cresol (2-methylphenol) novolac epoxy resin, ACCELERATORS, GLYOXALINE P, FT, IR, REACTION KINETICS, REACTION MECHANISM

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