NSE-study of fullerene-containing polymers

Gy Török, V. T. Lebedev, L. Cser, D. N. Orlova, Gy Káli, A. I. Sibilev, V. L. Alexeev, V. A. Bershtein, V. P. Budtov, V. N. Zgonnik, L. V. Vinogradova, E. Yu Melenevskaya

Research output: Contribution to journalConference article

10 Citations (Scopus)

Abstract

Stars of Poly(styrene) chains grafted to C60 have been studied by SANS and NSE below glass transition (TG ∼ 94°C). In stars the arms are not condensed at fullerene surface, spreading away from C60-core. The interaction between fullerene core and polymer chains slows down the β-relaxation in arms at T = - 20 to + 70°C < TG, so their relaxation time achieves of 10-60 μs (an order of magnitude higher than in free PS-chains). Together with slow processes in stars and PS we also observed a fast oscillation (periods ∼ 1 ns) of correlation function (δ-relaxation). The dynamic model for these stretched oscillations is proposed.

Original languageEnglish
Pages (from-to)45-49
Number of pages5
JournalPhysica B: Condensed Matter
Volume297
Issue number1-4
DOIs
Publication statusPublished - Mar 1 2001
EventProceeding of the 3rd International Workshop on Polarised Neutrons - Gatchina, Russian Federation
Duration: Jun 20 2000 → …

Keywords

  • Fullerene
  • Neutron spin echo
  • Polymer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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  • Cite this

    Török, G., Lebedev, V. T., Cser, L., Orlova, D. N., Káli, G., Sibilev, A. I., Alexeev, V. L., Bershtein, V. A., Budtov, V. P., Zgonnik, V. N., Vinogradova, L. V., & Melenevskaya, E. Y. (2001). NSE-study of fullerene-containing polymers. Physica B: Condensed Matter, 297(1-4), 45-49. https://doi.org/10.1016/S0921-4526(00)00867-X