私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

Links
Contact Info.
  • Address:廣西南寧市大學(xué)東路100號
  • Zip:530004
  • Tel:0771-3233718
  • Fax:
  • Email:david1005@126.com
Current Location :> Home > Publications > Text
Synthesis and characterization of novel fluorinated polyimides derived from bis[4-(4''- aminophenoxy)phenyl]-3,5-bis(trifluoromethyl)phenyl phosphine oxide
writer:Yuanqin Zhu, Pinqiao Zhao, Xuediao Cai, Wei-Dong Meng, Feng-Ling Qing
keywords:Phenylphosphine oxide, Fluorinated polyimide, Thermally stable polymer
source:期刊
specific source:Polymer
Issue time:2007年

A novel fluorinated aromatic diamine, bis[4-(40-aminophenoxy)phenyl]-3,5-bis(trifluoromethyl)-

phenyl phosphine oxide, was synthesized. A series of new fluorinated polyimides containing phosphine oxide was prepared from the novel diamine with various commercially available aromatic dianhydrides. All the fluorinated polyimides show high glass transition temperatures, excellent thermal stability, and good solubilityin common organic solvents.