Citation:
LI Chang-Yuan, LUO Yan. Preparation of Non-porous Bismaleimide Resin Microspheres[J]. Chinese Journal of Applied Chemistry,
;2005, 22(10): 1104-1107.
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The present paper covers the synthesis and characterization of a novel polyetherimide(PEI-A).The BMI resin microspheres with a diameter of 3~5 μm were prepared by curing the blend of bis(4-malei-(midediphenyl)) 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.
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Keywords:
- polyetherimide,
- bismaleimide resin,
- phase morphology,
- microsphere
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