New wholly-aromatic thermotropic polyesters with controlled flexibility

Devdatt S. Nagvekar, Patrick T. Mather, Hong G. Jeon, Loon Seng Tan

Research output: Contribution to journalConference Articlepeer-review


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′-(0-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.

Original languageEnglish (US)
Pages (from-to)165-170
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
StatePublished - 1999
EventProceedings of the 1999 MRS Spring Meeting - Symposium onLiquid Crystal Materials and Devices - San Francisco, CA, USA
Duration: Apr 5 1999Apr 7 1999

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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