| Abstrakt: |
Poly[(silanylene)thiopene]s, copolymers with alternating thiophene, 2,2'-bithiophene, or 2,2':5',5?-terthiophene and mono-, di-, or tetrasilanylene units, were prepared by condensation of the dilithium salts of the thiophenes or the bis(2'-thienyl)silanes with a,?-dichlorosilanes in diethylether. The polymers were characterized with1H,13C, and29Si NMR, UV, IR, GPC, TGA, and elemental analyses. UV absorption maxima of these polymers all show a red shift with increasing length of the polymer backbone, suggesting that conjugation occurs through the combined s-Si and p-thiophene backbone. |
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