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Polymers 2010, 2(4), 393-406; doi:10.3390/polym2040393

Polymerization in Liquid Crystal Medium: Preparation of Polythiophene Derivatives Bearing a Bulky Pyrimidine Substituent

Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan
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Received: 4 August 2010 / Revised: 25 September 2010 / Accepted: 29 September 2010 / Published: 11 October 2010
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Abstract

We carried out polycondensation of monomers bearing a bulky pyrimidine substituent in a liquid crystal solvent. The resultant polymers formed nematic liquid crystals. The polymers prepared in liquid crystals had higher coplanarity than the polymers prepared in toluene. This can be due to the fact that the ordered medium of the liquid crystal produces an aggregated structure with well-developed π-stacking between the main chains. The present results demonstrated that polymerization of bulky monomers is possible in liquid crystal solvents. View Full-Text
Keywords: liquid crystal; π-conjugated polymer; π stacking liquid crystal; π-conjugated polymer; π stacking
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Ohkawa, S.; Ohta, R.; Kawabata, K.; Goto, H. Polymerization in Liquid Crystal Medium: Preparation of Polythiophene Derivatives Bearing a Bulky Pyrimidine Substituent. Polymers 2010, 2, 393-406.

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