• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Preparation and characterization of syndiotactic polystyrene/ethylene-propylene copolymer blends
【24h】

Preparation and characterization of syndiotactic polystyrene/ethylene-propylene copolymer blends

机译：间规聚苯乙烯/乙烯-丙烯共聚物共混物的制备与表征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The reactive compatibilization of syndiotactic polystyrene (sPS)/oxazolinestyrene copolymer (RPS)/maleic anhydride grafted ethylene-propylene copolymer (EPR-MA) blends is investigated in this study. First, the miscibility of sPS/RPS blends is examined by thermal analysis. The cold crystallization peak (T-cc) moved toward higher temperature with increased PRS, and, concerning enthalpy relaxation behaviors, only a single enthalpy relation peak was found in all aged samples. These results indicate that the sPS/RPS blend is miscible along the various compositions and RPS can be used in the reactive compatibilization of sPS/RPS/EPR-MA blends. The reactive compatibilized sPS/RPS/EPR-MA blends showed finer morphology than sPS/EPR-MA physical blends and higher storage modulus (G') and complex viscosity (eta*) when RPS contents were increased. Moreover, the impact strength of sPS/RPS/EPR-MA increased significantly compared to sPS/EPR-MA blend, and SEM micrographs after impact testing show that the sPS/RPS/EPR-MA blend has better adhesion between the sPS matrix and the dispersed EPR-MA phase. (C) 2002 Wiley Periodicals, Inc. [References: 18]
机译：本研究研究了间规聚苯乙烯（sPS）/恶唑啉苯乙烯共聚物（RPS）/马来酸酐接枝的乙烯-丙烯共聚物（EPR-MA）共混物的反应相容性。首先，通过热分析检查sPS / RPS混合物的混溶性。随着PRS的增加，冷结晶峰（T-cc）向更高的温度移动，并且关于焓松弛行为，在所有老化的样品中仅发现一个焓相关峰。这些结果表明，sPS / RPS共混物可沿各种组合物混溶，RPS可用于sPS / RPS / EPR-MA共混物的反应性相容化。反应性相容的sPS / RPS / EPR-MA共混物比sPS / EPR-MA物理共混物表现出更好的形态，当RPS含量增加时，储能模量（G'）和复数粘度（eta *）更高。此外，与sPS / EPR-MA共混物相比，sPS / RPS / EPR-MA的抗冲击强度显着提高，冲击试验后的SEM显微照片显示sPS / RPS / EPR-MA共混物在sPS基质与表面分散的EPR-MA相。 （C）2002 Wiley Periodicals，Inc. [参考：18]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号