Interaction between two solid surfaces across PDMS : influence of chain length and end group

G.X. Sun, R. Stark, M. Kappl, F.A.M. Leermakers, H.J. Butt

    Research output: Contribution to journalArticleAcademicpeer-review

    4 Citations (Scopus)

    Abstract

    Forces between solid surfaces across polymer melts are poorly understood despite their importance for adhesion and composite materials. Using an atomic force microscope (AFM) this force was measured for poly(dimethyl siloxane) (PDMS) on silicon oxide. The influence of molecular weight (4.0-40 kDa) was studied. Forces are attractive for low and repulsive for high molecular weight. In addition, changing the terminal methyl group for a hydroxyl group leads to an increased probability of bridging.
    Original languageEnglish
    Pages (from-to)805-815
    JournalComposite Interfaces
    Volume12
    Issue number8-9
    DOIs
    Publication statusPublished - 2005

    Keywords

    • adsorbed polymer layers
    • atomic-force microscopy
    • thin-film
    • melts
    • equilibrium
    • shear
    • dna
    • scattering
    • tribology
    • viscosity

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