Role of saturated solutions of chiral amino acids in synthesis and phase segregation within optically active polyaniline

Authors

  • Sudha,

    1. Department of Applied Chemistry and Polymer Technology, Delhi Technological University (Formerly Delhi College of Engineering), Shahbad Daulatpur, Delhi 110042, India
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  • Kumar Devendra,

    Corresponding author
    1. Department of Applied Chemistry and Polymer Technology, Delhi Technological University (Formerly Delhi College of Engineering), Shahbad Daulatpur, Delhi 110042, India
    • Department of Applied Chemistry and Polymer Technology, Delhi Technological University (Formerly Delhi College of Engineering), Shahbad Daulatpur, Delhi 110042, India
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  • Iwamoto Mitsumasa

    1. Department of Physical Electronics, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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Abstract

The saturated solutions of chiral amino acids as soft template have been shown to function as a platform for induction of optical activity through free radical polymerization reaction. The conductivity of optically active polyaniline changes with the variation in acidity of reaction medium and morphology of the material. Ultraviolet-visible and circular dichroism spectra along with scanning electron microscopy and transmission electron microscopy micrographs evaluate discrete morphologies of polymers at different pH with phase segregation between unprotonated and fully protonated domains. Four probe method shows that the branched structure caused by the presence of phenazine units in polymer chain stabilizes different charge states in polymer with higher conductivity having higher dissymmetric g-factor. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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