期刊
POLYMER
卷 45, 期 10, 页码 3505-3510出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2004.03.043
关键词
cyanate esters; poly(ether imide); viscoelastic phase separation
A high temperature thermosetting bisphenol-A dicyanate, BADCy was blended with a thermoplastic poly(ether imide) (PEI). The phase separation behavior of the blend was investigated by scanning electron microscopy (SEM) and time resolved light scattering (TRLS). It was found by SEM that the blend with 20 and 25 wt% PEI had a phase inversion structure. The results of TRLS displayed clearly that the phase separation took place according to a spinodal decomposition (SD) mechanism and the evolution of both scattering vector q(m) and the maximum scattering intensity I-m followed Maxwell-type relaxation equation. The temperature-dependent relaxation time taufor the blends can be described by the Williams-Landel-Ferry equation. It demonstrated experimentally that the phase separation behaviors in PEI/BADCy blends were affected by viscoelastic effect. (C) 2004 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据