Electronic and Ionic Transport in Processable Conducting Polymers
Abstract
A number of polymers derived from 2,5-dialkoxy-1,4-bis(2-thienyl) benzene have been prepared and studied. Symmetric polymer repeat units are obtained when the alkoxy substituents are equivalent and asymmetric repeat units when they are different. The symmetric polymers are partially crystalline whereas the asymmetric ones are completely amorphous. Interestingly, the former show a higher conductivity than the latter upon doping. A new type of chemical sensor has been developed based on the redox release of fluorophores from a conducting polymer. Sub ppm levels of several analytes have been measured. 5- Decylbenzo(c)-2',5'-dihydrothiophene has been prepared and polymerized to processable poly(5-decyl-benzo(c)thiophene). This is a low band-gap polymer whose color gets much lighter upon doping. Another low band-gap polymer, poly(2, 3-dihexylthieno(3,4-b)pyrazine ) has been prepared and is also being investigated. (js)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 05, 1990
- Accession Number
- ADA227857
Entities
People
- Dennis S. Marynick
- John R. Reynolds
- Krishnan Rajeshwar’
- Martin Pomerantz
Organizations
- University of Texas at Arlington