首页>
外国专利>
FLUORINATED POLYQUINOXALINE, ITS MANUFACTURE FROM FLUORINATED TETRAMINE AROMATICS, AND METHOD OF APPLYING IT
FLUORINATED POLYQUINOXALINE, ITS MANUFACTURE FROM FLUORINATED TETRAMINE AROMATICS, AND METHOD OF APPLYING IT
展开▼
机译:氟化多喹喔啉,其从氟化四面体芳香族化合物中的制备及其应用方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
PURPOSE: To obtain a fluorinated polyquinoxaline excellent in solubility, dielectric, heat stability and useful for insulating materials by reacting bis-(diaminophenyl)-hexafluoropropane with a specific bis-(α-diketone)aromatic compound. ;CONSTITUTION: 2,2-Bis-(3,4-diaminophenyl)-hexafluoropropane and at least one bis-(α-diketone)aromatic compound represented by formula I (wherein Ar is 1,3-phenylene, 1,4-phenylene) (as the ratio to be used, preferably the molar ratio of the ketone to the amine is 1/1 to 1.1/1) are reacted in an organic solvent such as m-cresol at 0-120°C to obtain the desired compound having 2-100 repeating units of formula II. Further, this compound are useful for forming dielectric layers having a low dielectric constant.;COPYRIGHT: (C)1992,JPO
展开▼