无孔双马来酰亚胺树脂微球的制备  

Preparation of Non-porous Bismaleimide Resin Microspheres

作　　者：李长元[1] 罗炎[1] 

机构地区：[1]桂林电子工业学院材料科学与工程研究中心,桂林541004

出　　处：《应用化学》2005年第10期1104-1107,共4页Chinese Journal of Applied Chemistry

基　　金：广西科学基金资助项目(0339065)

摘　　要：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.The present paper covers the synthesis and characterization of a novel polyetherimide （PEI-A）. The BMI resin microspheres with a diameter of 3 - 5μm were prepared by curing the blend of bis （4-maleimidediphenyl） methane（BMI monomer） and 2,2＇-diallyl bisphenol A（DBA） with 10%- 50% PEI-A by means of reaction-induced phase separation（ 160℃ for 8 h,185 ℃ for 2 h,200 ℃ for 10 h）. The morphologies of the blends and the BMI resin microspheres were investigated by virtue of SEM. The size and size distribution of the BMI resin microsphere particle were characterized via LPS. The result shows that the system of PEI-A/（BMI monomer and DBA） is suitable to preparing BMI resin microspheres of micrometer size. With increase of the PEI-A content, bismaleimide resin microsphere particle size decreases, but the particle size distribution fluctuates in a wide-narrow-wide pattern.

关 键 词：聚醚酰亚胺 双马来酰亚胺树脂 相结构 微球 

分 类 号：O631[理学—高分子化学]