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      https://www.ias.ac.in/article/fulltext/boms/038/05/1301-1308

    • Keywords

       

      Liquid crystalline polyesters; thermotropic; interfacial polycondensation; rigid diol; dicarboxylic acid chloride.

    • Abstract

       

      A series of thermotropic liquid crystalline polyesters derived from bis-(4-hydroxybenzoyloxy)-2-methyl-1,4-benzene (BHBOMB) and aliphatic dicarboxylic acid chlorides were investigated. All these polyesters were synthesized by interfacial polycondensation method and characterized by differential scanning calorimetry and wide-angle X-ray diffractometer. These polyesters consist of BHBOMB as a mesogenic diol and aliphatic diacid chlorides were used as flexible spacers. The length of oligomethylene units in polymer was varied from the trimethylene to the dodecamethylene groups. The transition temperatures and thermodynamic properties were studied for all these polymers. All these polyesters were soluble in chlorinated solvents such as chloroform, dichloromethane, dichloroethane, etc. More importantly, all these polyesters exhibited very large mesophase stability.

    • Author Affiliations

       

      Khudbudin Mulani1 Mohasin Momin1 Nitin Ganjave2 Nayaku Chavan1

      1. Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune 411 008, India
      2. Department of Chemistry, Fergusson College, F.C. Road, Pune 411 004, India
    • Dates

       
  • Bulletin of Materials Science | News

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