Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 344319
Title Interaction between two solid surfaces across PDMS : influence of chain length and end group
Author(s) Sun, G.X.; Stark, R.; Kappl, M.; Leermakers, F.A.M.; Butt, H.J.
Source Composite Interfaces 12 (2005)8-9. - ISSN 0927-6440 - p. 805 - 815.
Department(s) Physical Chemistry and Colloid Science
Publication type Refereed Article in a scientific journal
Publication year 2005
Keyword(s) adsorbed polymer layers - atomic-force microscopy - thin-film - melts - equilibrium - shear - dna - scattering - tribology - viscosity
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.
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