A New Composition of High Heat General Purpose Polystyrene (High Heat GPPS) Resin

K. Basavaraju
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Abstract

A new composition of high heat general-purpose polystyrene (High heat GPPS) resin synthesis is discussed. The new composition of resin involves addition of cross-linker/comonomer in very low concentration during synthesis process. Commercially available vinyl cross-linkers like divinylbenzene (DVB), Ethylene dimethacrylate (EDM), Tricycle (5.2.1.02,6) decanedimethanol diacrylate (TDDDA), Dicyclopentadiene (DCPD) and vinyl comonomer like maleic anhydride, α-methylstyrene have been evaluated via bulk polymerization method. DVB showed enhancement in the heat distortion temperature (HDT), vicat softening temperature (VST) & melt flow index (MFI) compared to the benchmark grade of GPPS, whereas other mechanical and impact properties remained same or better than benchmark grade under identical methods of measurement.
一种新型高热通用聚苯乙烯(高热GPPS)树脂的合成
讨论了一种新的高热通用聚苯乙烯树脂合成方法。在合成过程中加入极低浓度的交联剂/共聚单体,得到了新型树脂。用体聚合法对市售的乙烯基交联剂如二乙烯基苯(DVB)、二甲基丙烯酸乙烯(EDM)、三环(5.2.1.02,6)癸二甲醇二丙烯酸酯(TDDDA)、二环戊二烯(DCPD)和乙烯基共聚物如顺丁二酸酐、α-甲基苯乙烯进行了评价。与GPPS基准品级相比,DVB的热变形温度(HDT)、维卡软化温度(VST)和熔体流动指数(MFI)均有所提高,而在相同的测量方法下,其他机械和冲击性能保持不变或优于基准品级。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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