无孔双马来酰亚胺树脂微球的制备

CHINESE JOURNAL OF APPLIED CHEMISTRY(2005)

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Abstract
合成了一种新型的聚醚酰亚胺(PEI-A),使之以10%~50%的质量分数与双马来酰亚胺(BMI)单体+烯丙基双酚A(DBA)体系共混,经由反应诱导相分离(160 ℃、8 h,185 ℃、2 h,200 ℃、10 h),制得粒径为3~5 μm 无孔BMI树脂微球. 用SEM观察了共混物的相结构和BMI树脂微球的形态,用激光粒度仪测定了BMI树脂微球的粒度及其分布. 结果表明,随着PEI-A用量的增加,BMI树脂微球粒径减小,且粒度分布呈由不均匀到均匀再到不均匀的变化.
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