Reaction-induced phase separation in rubber-modified epoxy resin

被引：0
作者：
Jianwen Zhang
Hongdong Zhang
Dong Yan
Hongwei Zhou
Yuliang Yang
机构：
[1] Fudan Uni.versity,Institute of Macromolecular Science
[2] Laboratory of Molecular Engineering of Polymers,Institute of Chemistry
[3] State Education Commission,undefined
[4] Chinese Academy of Sciences,undefined
来源：
Science in China Series B: Chemistry | 1997年 / 40卷
关键词：
polymerization-induced phase separation; rubber toughened epoxy resin; light scattering; curing kinetics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The phase separation mechanism- and structure development during curing of epoxy with a novel liquid rubber-ZR were investigated by time-resolved light scattering, optical microscope and differential scanning calorimetry (DSC). The mixture loaded with curing agent was a single-phase system in the early stage of curing. When the cure reaction proceeded, phase separation took place via the spinodal decomposition induced by polymerization of epoxy resin. This was supported by the characteristic change of light scattering profile with curing time. Cure reaction plays an important role in the progress of phase separation. The bigger the cure reaction rate is, the longer periodic distance will be. The overall two-phase structure was basically locked in when the conversion approached 80% estimated by DSC, and finally the co-continuous two-phase structure was successfully obtained.
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页码：15 / 23
页数：8
相关论文
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  • [1] Inoue T.(1995)Reaction-induced phase decomposition in polymer blends Prog. Polym. Sci. 20 119-119
  • [2] Okada M.(1995)Phase separation induced by polymerization of 2-chlorostyrene in a polystyrene/ dibutyl phthalate mixture Macromolecules 28 1795-1795
  • [3] Fujimoto K.(1989)Structure development in epoxy resin modified with poly( ether sulphone) Polymer 30 662-662
  • [4] Nose T.(1989)Reaction-induced phase separation in rubber-modified epoxy resins Polymer 60 1839-1839
  • [5] Yamanaka K.(1990)Phase separation mechanism of rubber-modified epoxy J. Mater. Sci. 25 241-241
  • [6] Inoue T.(1993)A new time-temperature-transformation cure diagram for thermoset/thermoplastic blend: tetrafunctional epoxy/poly(ether sulfone) Polymer 34 2809-2809
  • [7] Yamanaka K.(1995)Morphology development via reaction-induced phase separation in epoxy/poly(ether sulfóne) blends: morphology control using ply (ether sulfone) with functional end-groups Polymer 36 43-43
  • [8] Takagi Y.(1995)Phase separation and apparent phase dissolution during cure process of thexmoset/thermoplastic blend Polymer 36 67-67
  • [9] Inoue T.(1965)Phase separation by spinodal decomposition in isotropic systems J. Chem. Phys. 42 93-93
  • [10] Yamanaka K.(1988)Mechanical properties of poly(vinyl chloride)-poly(acrylonitrile-cobutadiene) blends with modulated structure J. Mater. Sci. 23 718-718
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