Proceedings of the Polymer Society of Korea Conference (한국고분자학회:학술대회논문집)

The Polymer Society of Korea (한국고분자학회)
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Circular Dichroism of Optically Active Poly(dialkylsilane) Aggregates in Microcapsules

  • Terao, Ken (Department of Macromolecular Science, Osaka University) ;
  • Kikuchi, Noriaki (Department of Biological and Chemical Engineering, Gunma University) ;
  • Sato, Takahiro (Department of Macromolecular Science, Osaka University) ;
  • Teramoto, Akio (Department of Applied Chemistry, Ritsumeikan University) ;
  • Fujiki, Michiya (Graduate School of Materials Science, Nara Institute of Science and Technology) ;
  • Dobashi2, Toshiaki (Department of Biological and Chemical Engineering, Gunma University)
  • Published : 2006.10.13
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Abstract

Poly(n-hexyl-(S)-3-methylpentylsilane) aggregates confined in microcapsules to keep the aggregation number and ranging in average polymer mass in a microcapsule from $2{\Box}10^{-16}\;to\;2{\Box}10^{-14}g$. were studied by circular dichroism measurements in ethanol (a non solvent) and tetrahydrofuran (an associative solvent at low temperature) at varioustemperatures. The size of each aggregate did not affect the optical activity because the circular dichroism was proportional to the aggregation number at the same condition. Moreover, the circular dichroism appreciably reflected the prepared method, i.e. temperature and solvent.

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