Copolymers Based on Products of Base Hydrolysis of Tetraethoxysilane in the Presence of Poly-N-vinylazoles and Polyvinylpyridines

摘要

The products of base hydrolysis of tetraethoxysilane in the presence of polymeric nitrogen bases poly-1-vinylpyrazole, poly-1-vinylimidazole, poly-4-vinylpyridine, and poly-2-methyl-5-vinylpyridine were isolated. The conditions of their formation, chemical composition, structural characteristics, and sorption properties with respect to noble metals (Ag, Au, Pt, and Pd) were studied. These products are highly dispersed thermally stable interpenetrating copolymers poorly soluble in water and organic solvents. Their composition and properties are governed by the kind of the polymeric nitrogen base.