Organogermane Homopolymers and Copolymers with Organosilanes

摘要

The first high molecular weight soluble, formable organogermane homopolymer(nBu2Ge)n was synthesized by the sodium coupling of:n-Bu2GeCl2 in toluene. Soluble organogermane/organosilane copolymers((X2GE)x)(YZSi)y)n were prepared by sodium coupling of X2GeCl2 and YZSiCl2 in different molar ratios (X=n-Bu, Ph; Y = n-hexyl, cyclohexyl; Z = Me). Germanium-containing polymers and copolymers with organosilanes are highly absorbing between 300-360 nm, with the absorption maxima dependent on the nature of the substituent and the ratio of X2Ge:YZSi in the polymer. These polymers are photoactive and display bleaching behavior with photoscission.