Comparison of interdiffusion behavior between linear polystyrenes and cyclic polystyrenes with same molecular weight

Daisuke Kawaguchi, Atsushi Takano, Yushu Matsushita, Naoya Torikai, Keiji Tanaka, Toshihiko Nagamura, Robert Dalgliesh, Sean Langridge

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    Time evolution of interfacial thicknesses between a cyclic polystyrene (c-hPS) / its deuterated counterpart (c-dPS) and a linear polystyrene (1-hPS) / its deuterated counterpart (1-dPS) bilayer films was investigated by dynamic secondary ion mass spectrometry (DSIMS) and neutron reflectivity (NR). The interfacial thickness of (c-hPS/c-dPS) film was significantly larger than that of (1-hPS/1-dPS) film at any given annealing time, indicating that the diffusion constant of c-PS is constantly larger than that of 1-PS. It might be explained that weaker topological constraint comes from the entanglement for the c-PS than for the 1-PS.

    Original languageEnglish
    Number of pages1
    Publication statusPublished - Dec 1 2005
    Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
    Duration: Sep 20 2005Sep 22 2005

    Other

    Other54th SPSJ Symposium on Macromolecules
    Country/TerritoryJapan
    CityYamagata
    Period9/20/059/22/05

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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