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Showing 1–4 of 4 results
Advanced filters: Author: Manabu Inutsuka Clear advanced filters

  • Mechanical properties of rubber nanocomposites are believed to closely related to the chain dynamics at the interface with fillers. We here tackle this hypothesis combining traditional rheological measurements with our published results obtained by a modern technique of interfacial sensitive spectroscopy.

    • Shin Sugimoto
    • Manabu Inutsuka
    • Keiji Tanaka
    Research
    Polymer Journal
    Volume: 52, P: 217-223

  • The film stabilities of ω-N-(3-(dimethylamino)propyl)propylamide-terminated polystyrene (PS-N) and conventional polystyrene (PS-H) on SiOx substrates were examined. Whereas a 20-nm-thick PS-H film was dewet at 423 K, a comparable PS-N film was stable because of the interaction between the chain end and the substrate surface. This indicates that end functionalization affects chain mobility with a relatively large scale at the solid interface.

    • Shinichiro Shimomura
    • Manabu Inutsuka
    • Keiji Tanaka
    Research
    Polymer Journal
    Volume: 48, P: 949-953

  • A poly(4-methylpentene-1) (P4MP1) film was prepared on a quartz substrate, which was a model system of interfaces in a filler-reinforced semicrystalline polymer composite. Grazing-incidence wide-angle X-ray diffraction measurements revealed that P4MP1 in the film after the isothermal crystallization formed a Form I crystal polymorph, in which the chain axis was oriented along the direction parallel to the quartz interface. Combining sum-frequency generation vibrational spectroscopy with molecular dynamics simulation enabled us to study the local conformation of P4MP1 chains at the quartz interface and the changes that occurred with isothermal crystallization.

    • Kentaro Yamamoto
    • Daisuke Kawaguchi
    • Keiji Tanaka
    Research
    Polymer Journal
    Volume: 51, P: 247-255