PRODUCTION OF SILICON-CONTAINING POLYCYCLIC AROMATIC POLYMER

• Main Authors: YAMAMURA TAKETAMI, ISHIKAWA TOSHIHIRO, SHIOJI YASUHIRO, KUGIMOTO JUNICHI, SHIBUYA MASAKI
• Format: Patent
• Language: English
• Published: 19.10.1990
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; ORGANIC MACROMOLECULAR COMPOUNDS; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP

PURPOSE:To obtain a precursor polymer of excellent mechanical properties, oxidation resistance and compatibility to the matrix for composite materials by heating a specific random copolymer and a polycyclic aromatic compound at a certain temperature. CONSTITUTION:(A) 100 pts.wt. of random copolymer in which at least a part of the silicon element of an organosilicon polymer which is mainly composed of (Si-CH2), or (Si-CH2) and (Si-Si) in which the side chains of Si atoms has substituents selected from hydrogen, lower alkyl or phenyl and the ratio of (Si-CH2):(Si-Si) is 1:(0 to 20) is bonded to the carbons on the aromatic ring in polycyclic aromatic compound prepared by extracting the fraction soluble in an organic solvent and (B) 5 to 90 pts.wt. of polycyclic aromatic carbons which is composed of the mess phase or a mixture thereof with optically isotropic phase which is prepared by heat-treating the component insoluble in the organic solvent in petroleum or coal pitch or their heat-treated product are allowed to react with each another at 200 to 500 deg.C.