Inventors:
Christopher K. Whitmarsh - Schenectady NY
Leonard V. Interrante - Schenectady NY
Assignee:
Rensselaer Polytechnic Institute - Troy NY
International Classification:
C08G 7712
Abstract:
Polycarbosilane compositions, which can serve as silicon carbide precursors, are formed by a Grignard coupling reaction of a halomethylcarbosilane followed by reduction using a metal hydride. The polycarbosilane compositions that result have a substantially 1:1 silicon to carbon stoichiometry, are substantially non-cyclic and branched, and comprise the repeat units SiH. sub. 3 CH. sub. 2 --, --SiH. sub. 3 CH. sub. 2 --,. dbd. SiHCH. sub. 2 --, and. tbd. SiCH. sub. 2 --.