Preparation of Partially Deuterium-labeled Poly(4-trimethylsilylstyrene)s and Unperturbed Dimensions in Bulk

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Monodisperse poly(4-timethylsilylstyrene)s (PTMSS's) and the partially deuterium-labeled polymers were prepared and characterized to determine their unperturbed dimensions by measuring small-angle neutron scattering of their blends. For polymer pairs with three different molecular weight (<I>M</I><SUB>w</SUB>), the radii of gyration (<I>R</I><SUB>g</SUB>) in bulk were estimated and a power law was deduced as <I>R</I><SUB>g</SUB>=0.022<I>M</I><SUB>w</SUB><SUP>0.50</SUP> (nm). The power index 0.50 was consistent with the theoretical prediction for ideal chains, 1/2. Although the prefactor, 0.022, is apparently smaller than that of polystyrene (PS), 0.0275, the segment length of this polymer, 0.72 nm, is similar to that of PS, 0.69 nm. It is indicated that the bulky trimethylsilyl group on 4-position does not affect much on the chain conformation of polystyrene backbone.

収録刊行物

  • Polymer journal

    Polymer journal 36(7), 538-541, 2004-07-15

    社団法人 高分子学会

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各種コード

  • NII論文ID(NAID)
    10013342500
  • NII書誌ID(NCID)
    AA00777013
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00323896
  • NDL 記事登録ID
    7009055
  • NDL 雑誌分類
    ZP16(科学技術--化学・化学工業--高分子化学・高分子化学工業)
  • NDL 請求記号
    Z53-R487
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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