Thermotropic liquid crystalline polymers. II. Further examples on their synthesis by the interaction of poly(acryloyl chloride) with mesogenic compounds

A recently reported method for the synthesis of thermotropic liquid crystalline polymers by the interaction of reactive polymers with mesogenic compounds is further illustrated by the preparation of two mesomorphic polymers. Specifically, poly(acryloyl chloride) is esterified with p‐hydroxybiphenyl and p‐hydroxyazobenzene for the synthesis of poly(p‐biphenyl acrylate) and poly(p‐acryloyloxyazobenzene), respectively. The liquid crystalline character of both polymers was established by optical microscopy, x‐ray diffraction analysis, and differential scanning calorimetry.