MAP-POSS改性PMMA非等温聚合反应动力学及物理性能  

Non-isothermal Polymerization Kinetics and Physical Properties of PMMA/MAP-POSS

作　　者：张媛媛[1] 高俊刚[1] 张彩云[1] 

机构地区：[1]河北大学化学与环境科学学院,河北保定071002

出　　处：《中国塑料》2009年第6期40-44,共5页China Plastics

基　　金：河北省自然科学基金资助项目(E2007000204)

摘　　要：通过共聚将甲基丙烯酰氧丙基笼型倍半硅氧烷(MAP-POSS)引入到聚甲基丙烯酸甲酯(PMMA)中,制备了有机/无机纳米杂化复合材料。用非等温差示扫描量热法研究了MAP-POSS与MMA共聚反应动力学,测定了反应动力学参数,建立了反应动力学数学模型,并测试了其力学、热学及电学性能。结果表明,MAP-POSS与MMA可以共聚,在不降低电性能的情况下,其冲强度提高了约30 kJ/m2,热分解温度提高了34℃。Methylacryloylpropyl-polyhedraldigomeric silsesquioxanes （MAP-POSS） were copolymerized with MMA leading to an organic/inorganic hybrid composite. The copolymerization kinetics of MMA with MAP-POSS was investigated by DSC with polymerization kinetic parameters determined. Mechanical, electrical, and thermal properties of such composite were determined. The impact strength of the composite increased 30 kJ/m^2, the thermal degradation temperature increased 34℃ based on neat PMMA, and the electrical property was not affected.

关 键 词：聚甲基丙烯酸甲酯 笼型倍半硅氧烷 共聚 反应动力学 力学性能 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]