Electronics and Ionic Transport in Polymers.
Abstract
Ion transport studies of the 'self-doped' copolymer, poly(pyrrole-co-3-(pyrrol-1-yl)propane sulfonate have shown that lithium mobility is 50% higher than butyl nitride. Polymerizaton of 3-(pyrrol-1-yl) propane sulfonate with ferric chloride has provided a water soluble polymer. A study of anodic polymerization of pyrrole using a quartz crystal microbalance, set up to be used in solution, shows poor polymerization efficiency at the beginning but improves as the reaction proceeds. The band gap of poly(1,2-dithienylethylene) has been measured as 1.77eV. Ion exchange in self-standing films of polypyrrole has been measured with bathing medium composition, pH and counter-diffusing ion charge as variables and the data show good adherence to the Helfferich and Plesset diffusion model. PRDDO calculations on a number of thiophene systems have provided information about HOMO-LUMO gaps, conformations, spin densities in radical cations and ease of polymerizations. Copolymerization of 1,3-cyclohexadiene and 2-chloroacrylonitrile has been shown to give mainly 1,2-polymerization with smaller amounts of 1,4-polymerization. Thermotropic liquid crystalline behavior has been observed in molecules containing square planar Cu(II) metal chelates of bis(2,5-dihydroxybenzaldehyde) ethylenediimine. Two polymers have been prepared from this system, neither of which appears to show liquid crystalline behavior. Keywords: Electronically conducting polymers; Ionically conducting polymers; High energy dielectric polymers; Liquid crystalline Polymers; Polymers; Copolymers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 15, 1987
- Accession Number
- ADA178227
Entities
People
- Dennis S. Marynick
- John R. Reynolds
- Krishnan Rajeshwar’
- Martin Pomerantz
- Timothy D. Shaffer
Organizations
- University of Texas at Arlington