Synthesis of aromatic polyimide bearing long alkyl chains through click reaction

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<jats:title>Abstract</jats:title><jats:p>A click reaction of aromatic polyimide having azide groups at both chainends (<jats:bold>2</jats:bold>), which was obtained by an azidation of polyimide having chloromethyl groups (<jats:bold>1</jats:bold>), was conducted with 1-octyne, leading to the polyimide having <jats:italic>n</jats:italic>-hexyl groups (<jats:bold>3</jats:bold>). <jats:sup>1</jats:sup>H NMR spectroscopic analysis for <jats:bold>3 </jats:bold>reveals that the <jats:italic>n</jats:italic>-hexyl groups were successfully introduced into the both chain-ends of aromatic polyimide and that a number-averaged molecular weight of the resulting polymer <jats:bold>3 </jats:bold>was 6000. Differential scanning calorimetry analysis for <jats:bold>3 </jats:bold>exhibited 30 °C lower glass transition temperature compared to that of <jats:bold>1</jats:bold>, by introducing long alkyl groups into the aromatic polyimide chain.</jats:p>

Journal

  • e-Polymers

    e-Polymers 12 2012-12-01

    Walter de Gruyter GmbH

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