A series of ethynyl-containing organosilicon hybrid polymers had been synthesized via Sonogashira
cross-coupling reactions using ethynyl-ended silazane (N,N’—bis(4-ethynylphenyl) -1,1-diphenylsilylenediamine,
M1) monomer with different silyene-containing [—Si(CH3 )2—,—Si(CH3 )2—O—Si(CH3 )2— and —Si(CH3 )2—
O—Si(CH3)2—O—Si(CH3 )2—] bromophenyl-ended monomers. These polymers showed good solubility. The polymers
were characterized by FTIR, 1H NMR and gel permeation chromatogratography(GPC). Their thermal properties
are investigated by thermogravimetric analysis(TGA). The results show that these polymers has good thermal stability.