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

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
* Author to whom correspondence should be addressed.
Received: 4 August 2010; in revised form: 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.
Keywords: liquid crystal; π-conjugated polymer; π stacking

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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.

AMA 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(4):393-406.

Chicago/Turabian Style

Ohkawa, Satoshi; Ohta, Reina; Kawabata, Kohsuke; Goto, Hiromasa. 2010. "Polymerization in Liquid Crystal Medium: Preparation of Polythiophene Derivatives Bearing a Bulky Pyrimidine Substituent." Polymers 2, no. 4: 393-406.

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