Synthesis and Characterization of Thermotropic Poly(benzobisthiazole)s

Kunio Kimura, David L. Meurer, René F. Hutzler, J. W. Fitch, Patrick E. Cassidy

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Thermotropic polymers containing the benzo[1,2-d:4,5-d′]bisthiazole-2,6-diyl unit combined with 2,5-bis(n-alkoxy)-1,4-phenylene (Cn-PTBT) or 5-(alkyloxy)-1,3-phenylene units (Cn-PIBT) were synthesized via precursor polyamides prepared by low-temperature solution polycondensation. The polyamides were converted into Cn-PTBT or Cn-PIBT by heating at 250 °C. All polymers except for one containing 2,5-bis(n-butyloxy)-1,4-phenylene showed anisotropic melt phases in the range of 280-450 °C. Characterization of these polymers by differential scanning calorimetry, thermal optical analysis, X-ray diffraction, and thermogravimetric analysis is reported. The polymers were not stable at high temperatures due to decomposition of the alkyloxy side chains.

Original languageEnglish
Pages (from-to)1303-1306
Number of pages4
Issue number6
Publication statusPublished - Nov 1 1994
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry


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