Synthesis, polymerization and characterization of substituted dithieno[3,4-b:3′,4′-d]thiophenes
- 1 January 1999
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 9 (8) , 1719-1726
- https://doi.org/10.1039/a900075e
Abstract
Chemical or electrochemical oxidation of substituted dithieno[3,4-b:3′,4′-d]thiophenes provides polymers with defined regiochemical structures. These materials have lower bandgaps (0.7-0.9 eV) than the unsubstituted fused heteroarene. Potential cycling of the 1,3-dimethyl substituted polymer film shows repetitive p- and n-dopability. The chemically-prepared dioctyl analog is soluble in common solvents such as chloroform, dichloromethane and THF. However, overoxidation of the polymers at an electrode surface presents a limitation to the polymerization of substituted analogs of the parent fused heteroarene.Keywords
This publication has 0 references indexed in Scilit: