RESEARCH ON THE SYNTHESIS OF A NOVEL EXPANSION MONOMER PREPOLYMER AND ITS MODIFYING BLENDS OF BDM/DABPA

Abstract

Abstract: A spiro orthocarbonate expansion monomer 3,9-diethyl-3,9-dihydroxymethyl-1,5,7, 11-tetraoxaspiro[5. 5]undecane was synthesized by two steps,and then expansion monomer prepolymer was prepared by copolymerization of expansion monomer and the polyurethane prepolymer which was prepared with 2,4-toluene diisocyanate and propylene glycol. The pruducter was characterized by FT-IR spectra,1HNMR and element analysis. With the introduction of the expansion monomer prepolymer into the blends of N,N'-4,4'-diphenylmethane-bismaleimide (BMI) /O,O'-diallyl bisphenol A(DABPA), the volume shrinkage of the BMI /DABPA system was reduced.

Key words: expansion monomer, synthesisl bismaleimide, volume shrinkage

CLC Number:

TB332

ZHOU Wei, FANG Jun, LIU Yu-jian, ZHANG Yan. RESEARCH ON THE SYNTHESIS OF A NOVEL EXPANSION MONOMER PREPOLYMER AND ITS MODIFYING BLENDS OF BDM/DABPA[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(5): 14-17.

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