Curing kinetics and reaction-induced homogeneity in networks of poly(4-vinyl phenol) and diglycidylether epoxide cured with amine

Chean Cheng Su, E. M. Woo, Yin Ping Huang

研究成果: Article同行評審

22 引文 斯高帕斯(Scopus)

摘要

Mixtures of diglycidyl ether of bisphenol-A (DGEBA) epoxy resin with poly(4-vinyl phenol) (PVPh) of various compositions were examined with a differential scanning calorimeter (DSC), using the curing agent 4,4′-diaminodiphenylsulfone (DDS). The phase morphology of the cured epoxy blends and their curing mechanisms depended on the reactive additive, PVPh. Cured epoxy/ PVPh blends exhibited network homogeneity based on a single glass transition temperature (Tg) over the whole composition range. Additionally, the morphology of these cured PVPh/epoxy blends exhibited a homogeneous network when observed by optical microscopy. Furthermore, the DDS-cure of the epoxy blends with PVPh exhibited an autocatalytic mechanism. This was similar to the neat epoxy system, but the reaction rate of the epoxy/polymer blends exceeded that of neat epoxy. These results are mainly attributable to the chemical reactions between the epoxy and PVPh, and the regular reactions between DDS and epoxy.

原文English
頁(從 - 到)1-10
頁數10
期刊Polymer Engineering and Science
45
發行號1
DOIs
出版狀態Published - 2005 1月 1

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 聚合物和塑料
  • 材料化學

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