New Wholly-Aromatic Thermotropic Polyesters with Controlled Flexibility

MRS Online Proceedings Library volume 559, pages165–170(1999)Cite this article

Abstract

In this work, we present the synthesis and characterization of a new series of wholly-aromatic copolyesters derived from the condensation of various weight fractions of 4,4’-(o- phenylenedioxy)dibenzoic acid (OPDB) and substituted terephthalic acid (BTA) with 2-phenylhydroquinone (PHQ). The Higashi method, involving tosyl chloride and pyridine as solvent, was employed to yield polymer with significant molecular weight. These polymers are intended to enable accessible clearing transition and to control the balance of stiffness and toughness in melt-spun fibers systematically. We report the synthetic details along with characterization of quiescent phase behavior and morphology.

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Affiliations

  1. Univ. Dayton Research Inst., 300 College Park, Dayton, OH, 45469, USA

    Devdatt S. Nagvekar

  2. AFR/IMLBP, Wright Patterson Air Force Base, 2941 P St., OH, 45433, USA

    Patrick T. Mather & Loon-Seng Tan

  3. Systran Corp., AFRL/MLBP, Wright Patterson Air Force Base, 2941 P St., OH, 45433, USA

    Hong G. Jeon

Authors
  1. Devdatt S. Nagvekar
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  2. Patrick T. Mather
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  3. Hong G. Jeon
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  4. Loon-Seng Tan
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Correspondence to Devdatt S. Nagvekar.

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Nagvekar, D.S., Mather, P.T., Jeon, H.G. et al. New Wholly-Aromatic Thermotropic Polyesters with Controlled Flexibility. MRS Online Proceedings Library 559, 165–170 (1999). https://doi.org/10.1557/PROC-559-165

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