ABSTRACT N-phenylmaleimide (N-PMI) and its precursor, (Z)-4-oxo-4-(phenylamino)but-2-enoic acid, were synthesized from aniline and maleic anhydride. Copolymerization between N-phenylmaleimide and styrene was initiated in micropores and outside surface of porous polyvinyl chloride (PVC) resin suspended in aqueous phase. The modified PVC was characterized with Gel Permeation Chromatography, thermal gravimetric analysis and scanning electron microscopy. The result of high performance liquid chromatography shows that the purity of N-PMI reached 97.3%. Thermal gravimetric analysis indicated that the introduction of N-PMI could clearly affect the thermal degradation behavior of PVC, and when PMI was at 6.25% of the PVC mass, the decomposition temperature T0.5 of modified polymer was increased to 314.2°C. The glass transition temperature of modified polymer was increased from 70°C to 80°C.

中文翻译：

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N-苯基马来酰亚胺与苯乙烯在悬浮于水溶液中的多孔聚氯乙烯颗粒中的接枝共聚

摘要 N-苯基马来酰亚胺 (N-PMI) 及其前体 (Z)-4-oxo-4-(苯基氨基)but-2-enoic 酸是由苯胺和马来酸酐合成的。N-苯基马来酰亚胺和苯乙烯之间的共聚反应是在悬浮在水相中的多孔聚氯乙烯 (PVC) 树脂的微孔和外表面引发的。通过凝胶渗透色谱、热重分析和扫描电子显微镜对改性PVC进行了表征。高效液相色谱结果表明N-PMI纯度达到97.3%。热重分析表明，N-PMI的引入对PVC的热降解行为有明显的影响，当PMI为PVC质量的6.25%时，改性聚合物的分解温度T0.5升高至314.2℃。