Volume 38, Issue 18 pp. 2741-2745
Communication

Influence of Perfluoroarene–Arene Interactions on the Phase Behavior of Liquid Crystalline and Polymeric Materials

Marcus Weck

Marcus Weck

Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125 (USA), Fax: (+1) 626-564-9297

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Alex R. Dunn

Alex R. Dunn

Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125 (USA), Fax: (+1) 626-564-9297

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Kozo Matsumoto

Kozo Matsumoto

Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125 (USA), Fax: (+1) 626-564-9297

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Geoffrey W. Coates

Geoffrey W. Coates

Baker Laboratory, Deptment of Chemistry & Chemical Biology, Cornell University, Ithaca, NY 14853-1301 (USA), Fax: (+1) 607-255-4137

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Emil B. Lobkovsky

Emil B. Lobkovsky

Baker Laboratory, Deptment of Chemistry & Chemical Biology, Cornell University, Ithaca, NY 14853-1301 (USA), Fax: (+1) 607-255-4137

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Robert H. Grubbs

Robert H. Grubbs

Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125 (USA), Fax: (+1) 626-564-9297

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Abstract

A stabilization of the liquid-crystalline mesophase and thus an enlarged temperature range of the mesogenic phase is achieved by adding perfluorotriphenylene to a chiral liquid-crystalline triphenylene. This mesophase is based on 1:1 perfluoroarene–arene interactions (see picture). In a polymer with triphenylenes as mesogens in the side chains, the addition of perfluorotriphenylene led to crystallization.

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