SYNTHESIS, SOME SPECTROSCOPIC AND ELECTROCHEMICAL INVESTIGATIONS ON NOVEL MONOMERIC AND POLYMERIC ACETYLENE SUBSTITUTED THIOPHENE MONOMERS AND POLYMERS

Abstract

Acetylene substituted thiophenes of the following types were synthesized:

Ar-[tbnd]-Ar-[tbnd]-Ar, Ar′-[tbnd]-Ar′-[tbnd]Ar′, Ar-[tbnd]-Ar′-[tbnd]-Ar, Ar′-[tbnd]-Ar-Ar-[tbnd]-Ar′, Ar-[tbnd]-Ar-Ar′-[tbnd]-Ar′These monomen were polymerized to the corresponding polymers. The UV-spectra and their oxidation potentials were determined. Attempts to correlate these two properties will be reported. The corresponding polymers were of relative low molecular weight and me nonconductors in the doped as well as iodine doped state.

Key Words:

• Acetylene substituted thiophenes
• polymeric acetylene substituted thiophenes
• oxidation potentials
• UV-spectra