Structure/properties of conjugated conductive polymers. 2. 3-Ether-substituted polythiophenes and poly(4-methylthiophenes)

Two series of 3-substituted polythiophenes and poly(4-methylthiophene)s having the substituents containing 8 atoms in the backbone with oxygen as the first atom bonded to the thiophene ring, C 7 H 15 O-, C 4 H 9 OC 2 H 4 O-, and CH 3 OC 2 H 4 OC 2 H 4 O- for the former series and having the first two substituents for the latter series were synthesized by chemical polymerization using FeCl 3 as the oxidizing agent.