抄録
Polyimide-silica hybrid materials were prepared via a modified sol-gel and high pressure-thermal polymerization procedure. The precursor monomer salt was derived from 2, 5-diethoxycarboxyl terephthalic acid (p-PME) and 1, 9-diaminononane. Aqueous solutions of tetramethoxysilane (TMOS) and monomer salt were transformed into a gels with subsequent dehydration forming powders which were then subjected to high pressure thermal polymerization. By varying the ratio of TMOS to monomer salt, hybrids containing SiO2 contents of 0 to 100wt% could be made. The thermal and physical behaviors of hybrids are discussed.
