• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polymers for advanced technologies >Structure--property co-relationship of fluorinated poly(imide-siloxane)s
【24h】

Structure--property co-relationship of fluorinated poly(imide-siloxane)s

机译：氟化聚（酰亚胺-硅氧烷）的结构-性能共关系

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

Eight poly(imide-siloxane)s co-polymers have been prepared by one pot solution imidization method. The polymers are synthesized by the reaction of bisphenol-A-dianhydride (BPADA) with fluorinated diamine 4,4'-bis(3'-trifluoromethyl-p-aminobiphenyl ether) biphenyl, and aminopropyl-terminated polydimethylsiloxane (APPS). The polymers are synthesized by varying the siloxane loading to 5, 10, 15, 20, 25, 30, 35, and 40 wt%, respectively. Thermal, mechanical, rheological, and dielectric properties of these polymers have been evaluated with respect to siloxane loading. The polymers showed glass transition temperature of 107-203℃ and tensile strength at break of 24-75 MPa depending on siloxane loading. The elongation break of the polymers ranges from 24 to 144% depending on siloxane loading. The amounts of char residue in the polymers have been correlated with incorporated siloxane in the polymer by NMR techniques. The polymers showed very low water absorption and dielectric constant as low as 2.43 when the siloxane loading is 40 wt%.
机译：通过一种罐溶液酰亚胺化方法已经制备了八种聚（酰亚胺-硅氧烷）共聚物。通过双酚A二酐（BPADA）与氟化二胺4,4'-双（3'-三氟甲基-对氨基联苯醚）联苯和氨基丙基封端的聚二甲基硅氧烷（APPS）反应合成聚合物。通过将硅氧烷的负载量分别改为5、10、15、20、25、30、35和40 wt％来合成聚合物。这些聚合物的热，机械，流变学和介电性能已根据硅氧烷的含量进行了评估。取决于硅氧烷的负载量，该聚合物的玻璃化转变温度为107-203℃，断裂拉伸强度为24-75 MPa。取决于硅氧烷的负载量，聚合物的伸长率断裂范围为24至144％。通过NMR技术已经将聚合物中的焦炭残渣的量与聚合物中掺入的硅氧烷相关联。当硅氧烷负载量为40wt％时，聚合物显示出非常低的吸水率和低至2.43的介电常数。

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