Synthesis and characterization of a semiflexible liquid crystalline polyester with a broad nematic region

Patrick Mather Department of Chemical and Nuclear Engineering and Materials Department, University of California, Santa Barbara, California, 93106, U.S.A.

Nino Grizzuti Department of Chemical and Nuclear Engineering and Materials Department, University of California, Santa Barbara, California, 93106, U.S.A.; Universita di Napoli, Dipartimento di Ingegneria Chimica, Piazzale V. Tecchio, 80125, Napoli, Italia

Glenn Heffner Department of Chemical and Nuclear Engineering and Materials Department, University of California, Santa Barbara, California, 93106, U.S.A.; Dupont Polymers, Experimental Station, PO Box 80101, Wilmington, DE, 19880-0101

Mathias Ricker Department of Chemical and Nuclear Engineering and Materials Department, University of California, Santa Barbara, California, 93106, U.S.A.; Patentanwalte Strehl, Schubel-Hopf, Groening, Postfach 22 14 55, 8000, Munich, Germany

Willie E. Rochefort Department of Chemical and Nuclear Engineering and Materials Department, University of California, Santa Barbara, California, 93106, U.S.A.; Oregon State University, Dept. of Chemical Engineering, Gleeson Hall 103, Corvallis, Oregon, 97331-2702, U.S.A.

Markus Seitz Department of Chemical and Nuclear Engineering and Materials Department, University of California, Santa Barbara, California, 93106, U.S.A.; Institute for Organic Chemistry, University of Mainz, 55021, Mainz, Germany

Hans-Werner Schmidt Department of Chemical and Nuclear Engineering and Materials Department, University of California, Santa Barbara, California, 93106, U.S.A.

Dale S. Pearson Department of Chemical and Nuclear Engineering and Materials Department, University of California, Santa Barbara, California, 93106, U.S.A.

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Abstract

In this paper, we report on the synthesis and detailed characterization of a new semiflexible nematic liquid crystalline polyester which could serve as a ‘model’ polyester for a variety of physical and physico-chemical investigations. The polymer is a nematic liquid over a wide temperature range–from the glass transition temperature at ∼95°C to the isotropic transition at ∼240°C. We expect this polyester to be particularly useful for studying the effect of flow on the orientation of liquid crystalline polymers, as well as the production and removal of disclinations.

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Synthesis and characterization of a semiflexible liquid crystalline polyester with a broad nematic region

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Synthesis and characterization of a semiflexible liquid crystalline polyester with a broad nematic region

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