• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Symposium on Continuous Nanophase and Nanostructured Materials; 20031201-20031205; Boston,MA; US >Nanocomposites of Liquid Crystalline Polyhedral Oligomeric Silsesquioxane Particles and Liquid Crystalline Polymers
【24h】

Nanocomposites of Liquid Crystalline Polyhedral Oligomeric Silsesquioxane Particles and Liquid Crystalline Polymers

机译：液晶多面体低聚倍半硅氧烷颗粒和液晶聚合物的纳米复合材料

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

A new liquid crystalline nanoparticle has been synthesized by the reaction of a cyanobiphenyl derivative with polyhedral oligomeric silsesquioxane (POSS~(~R)). Two POSS nanoparticles, liquid crystalline POSS (LC POSS 3) and a non-LC isooctyl POSS (OPOSS), were then compounded at 2.5 wt % into thermotropic polyester liquid crystalline polymers (LCPs) poly(hexamethylene 4, 4'-bibenzoate), poly(diethylene glycol 4,4′-bibenzoate) as well as a frustrated LCP 45:55 poly(ethylene terephthalate-co-4,4?-bibenzoate). These polymers are currently being studied for potential use in high performance fibers and high barrier packaging materials. A comprehensive study of LCP/LC POSS 3 nanocomposites will focus on any changes in the thermal and mechanical properties of the LCPs with increasing LC POSS 3 concentration. It will be determined how incorporation of LC POSS 3 affects the liquid crystalline phases of an amorphous and crystalline LCP. Of special interest is the incorporation of LC POSS 3 into a frustrated LCP. It is proposed that the LC POSS 3 might help to unfrustrate the LCP.
机译：通过氰基联苯衍生物与多面体低聚倍半硅氧烷（POSS〜（〜R））的反应合成了一种新的液晶纳米粒子。然后将两种POSS纳米粒子液晶液晶POSS（LC POSS 3）和非LC异辛基POSS（OPOSS）以2.5 wt％的比例混入热致聚酯液晶聚合物（LCP）聚（六亚甲基4，4'-联苯甲酸酯）中，聚（二乙二醇4,4'-联苯甲酸酯）以及失意的LCP 45:55聚（对苯二甲酸乙二醇酯-co-4,4′′-联苯甲酸酯）。目前正在研究这些聚合物在高性能纤维和高阻隔包装材料中的潜在用途。对LCP / LC POSS 3纳米复合材料的全面研究将集中于随着LC POSS 3浓度的增加，LCP的热和机械性能发生任何变化。将确定LC POSS 3的掺入如何影响无定形和结晶LCP的液晶相。特别令人感兴趣的是将LC POSS 3合并到沮丧的LCP中。建议LC POSS 3可能有助于使LCP正常运行。

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