Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Synthesis of Polyimide Derived from 4-Methyl-1,2-phenylene Bis(4-aminobenzoate) and 4,4'-Hexafluoroisopropylidenediphthalic Anhydride

  • Byung Hyun Ahn (Department of Material Engineering, Pukyong National University)
  • Received : 2023.02.01
  • Accepted : 2023.02.11
  • Published : 2023.03.31
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Abstract

Aromatic diamine containing ortho catenation and methyl group was synthesized from 4-methyl catechol and 4-nitrobenzoyl chloride. Subsequently, a poly(amic acid) was prepared by reacting 4-methyl-1,2-phenylene bis(4-aminobenzoate) with 4,4'-hexafluoroisopropylidenediphthalic anhydride (6FDA). The resulting poly(amic acid) was transformed into a polyimide through chemical imidization. The polyimide formed was soluble in N-methyl-2-pyrrolidone (NMP) and could be cast into a flexible, transparent film. Furthermore, the polyimide exhibited a 5% weight loss at 380 ℃ in the nitrogen atmosphere.

Keywords

Acknowledgement

This work was supported by a Research Grant of Pukyong National University (2021 year).

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