| abstract |
PURPOSE: To provide the title compsn. which has improved spinnability and is freed from the problem of brittleness, consisting of a polycarbosilane polymer (organometallic copolymer) and an organosilicon high-molecular compd. n CONSTITUTION: An organosilicon compd. having a polysilane skeleton of formula I (wherein R 5 is methylene, phenylene; R 6 , R 7 are each a 1W6C monovalent hydrocarbon group; x, y, z are each a positive number; x≥y) or a mixture thereof with an organometallic compd. (e.g. tetrabutoxytitanium) is subjected to a heat-decomposing polycondensation reaction to obtain a polycarbosilane polymer or its organometallic copolymer (A). 80W99.9wt% component A is blended with 20W0.1wt% linear organosilicon high-molecular compd. having a weight-average MW of 10,000W1,000,000 and formula II (wherein R 1 , R 2 are each a monovalent hydrocarbon group; R 3 is OH, amino, trialkylsiloxy, monova lent hydrocarbon group; m≥100). n COPYRIGHT: (C)1986,JPO&Japio |