Synthesis and Characterization of Linear Boron−Silicon−Diacetylene Copolymers

Boron-silicon-diacetylenic copolymers ([C≡C-C≡C-SiMe 2 (OSiMe 2 ) x ] y [C≡C-C≡C-BPh] z ) n have been synthesized and characterized. The diecetylenic functionalities were found to crosslink thermally to give stable networks at high temperatures. The effects of silicon and boron incorporated into the host diacetylenic polymers were found to enhance their oxidative stabilities. Aging studies showed these materials to have exceptional oxidative stabilities