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Quantitative analysis of “polymer-balls” in aqueous solutions by small-angle neutron scattering

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Abstract

The quantitative analysis of polymer micelles consisting of amphiphilic block copolymers was carried out by small-angle neutron scattering (SANS). The block copolymers, made of poly(2-ethoxyethyl vinyl ether-b-2-hydroxyethyl vinyl ether) (poly(EOVE-b-HOVE)), exhibited a sharp morphological transition from a homogeneous solution to a micelle structure with increasing temperature. This transition is accompanied by a formation of spherical domains of poly(EOVE) with a radius around 200 Å. The variations of the size and its distribution of the domains were investigated as a function of polymer concentration and temperature. The validity of SANS analysis, including the wavelength- and incident-beam-smearing effects of the SANS instrument, was examined with a pre-calibrated polystyrene latex.

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Author notes

  1. Mitsuhiro Shibayama

    Present address: Neutron Scattering Laboratory, Institute for Solid State Physics, University of Tokyo, 319-1106, Tokai, Ibaraki, Japan

Authors and Affiliations

  1. Neutron Scattering Laboratory, Institute for Solid State Physics, University of Tokyo, 319-1106, Tokai, Ibaraki, Japan

    Satoshi Okabe & Michihiro Nagao

  2. Department of Macromolecular Science, Graduate School of Science, Osaka University, 560-0043, Toyonaka, Osaka, Japan

    Shinji Sugihara & Sadahito Aoshima

  3. Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, 606-8501, Kyoto, Japan

    Tamotsu Harada & Hideki Matsuoka

Authors
  1. Mitsuhiro Shibayama
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  2. Satoshi Okabe
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  3. Michihiro Nagao
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  4. Shinji Sugihara
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  5. Sadahito Aoshima
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  6. Tamotsu Harada
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  7. Hideki Matsuoka
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Shibayama, M., Okabe, S., Nagao, M. et al. Quantitative analysis of “polymer-balls” in aqueous solutions by small-angle neutron scattering. Macromol. Res. 10, 311–317 (2002). https://doi.org/10.1007/BF03218324

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  • DOI: https://doi.org/10.1007/BF03218324

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