Synthesis and Properties of a Novel Thiophene-Based Conducting Copolymer with Mesogenic Groups Attached Parallel to the Polymer Backbone

• Published in: Macromolecular rapid communications. Vol. 25; no. 10; pp. 1000 - 1003
• Main Authors: Brown, John W., Lambe, Gillian J., Foot, Peter J. S., Clipson, Jacqueline A.
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01-05-2004; WILEY‐VCH Verlag; Wiley
• Subjects: Applied sciences; Exact sciences and technology; liquid-crystalline polymers (LCP); Organic polymers; parallel attached; Physicochemistry of polymers; Polymers with particular properties; polythiophene; Preparation, kinetics, thermodynamics, mechanism and catalysts; sideways attached; synthesis; Electrical conductivity; Electrical properties; Thermotropic state; Temperature effect; Experimental study; Functional polymer; Hydrolysis; Conducting polymers; Random copolymer; Chemical modification; Side chain; Liquid crystal polymers; Preparation; Aromatic copolymer; Acid copolymer; Oxidative polymerization; Nucleophilic substitution; Thiophene derivative copolymer
• ISSN: 1022-1336; 1521-3927
• DOI: 10.1002/marc.200400035

A novel thiophene‐based conducting copolymer has been synthesised with mesogenic groups attached parallel to the conducting polymer backbone; preliminary data are reported on its properties. These indicate that as the nonmesogenic intermediate polymer is converted into a liquid‐crystalline polymer there is a significant increase in conductivity. Measurement of the temperature‐dependent conductivity indicates a reduction of the activation energy in the liquid‐crystalline phase.
Poly[(1‐(thiophene‐3‐methyloxy)‐6‐(4‐n‐hexyloxy‐2‐oxybenzoic acid)hexane)‐co‐(3‐n‐hexylthiophene)].