Conducting Bipyridine-Bithiophene Copolymers

The synthesis and electrochemical polymerization of 6,6‘-bis(2‘‘-thienyl)-3,3‘-bipyridine (2) and 6,6‘-bis(2‘‘-thienyl)-2,2‘-bipyridine (3) are reported. Cyclic voltammetry shows that the resulting polymers have high bandgaps (3.0 and 3.2 eV, respectively) and are unstable in their p-doped (oxidized...

Full description

Saved in:
Bibliographic Details
Published in:Chemistry of materials 1997-05, Vol.9 (5), p.1213-1216
Main Authors: Jenkins, Ieuan H, Rees, Neale G, Pickup, Peter G
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The synthesis and electrochemical polymerization of 6,6‘-bis(2‘‘-thienyl)-3,3‘-bipyridine (2) and 6,6‘-bis(2‘‘-thienyl)-2,2‘-bipyridine (3) are reported. Cyclic voltammetry shows that the resulting polymers have high bandgaps (3.0 and 3.2 eV, respectively) and are unstable in their p-doped (oxidized) states. Both polymers are stable when n-doped, but electronic conductivities determined by impedance spectroscopy were only ca. 3 × 10-8 S cm-2. Surprisingly, the greater conjugation in poly-2, which is demonstrated by its lower bandgap, does not lead to enhanced conductivity.
ISSN:0897-4756
1520-5002
DOI:10.1021/cm960604v