Monte Carlo simulations of the adsorption of a single polymer chain on rough surfaces

The adsorption of a single chain on structured surfaces is investigated using the bond-fluctuation model. The different surfaces were a flat, a stick-like, a pyramidal surface and a surface with square holes. The adsorption starts at about the same temperature for all surface structures, therefore d...

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Bibliographic Details
Published inPolymer (Guilford) Vol. 38; no. 7; pp. 1607 - 1613
Main Authors Gottstein, W., Kreitmeier, S., Wittkop, M., Göritz, D., Gotsis, F.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.03.1997
Elsevier
Subjects
adsorption
Applied sciences
computer simulation
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
structured surfaces
Surface properties
computer simulation
adsorption
structured surfaces
Monte Carlo method
Three dimensional model
Adsorption
Computer simulation
Lattice model
Temperature effect
Theoretical study
Polymer
Rough surface
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Summary:The adsorption of a single chain on structured surfaces is investigated using the bond-fluctuation model. The different surfaces were a flat, a stick-like, a pyramidal surface and a surface with square holes. The adsorption starts at about the same temperature for all surface structures, therefore denoted as the adsorption temperature. The rate for further adsorption with decreasing temperature is enhanced for the structured surfaces. The desorption of once adsorbed chains starts markedly below the adsorption temperature. Despite the structure of the surfaces the adsorbed chains show clearly two-dimensional properties for the lowest temperatures. The exception is the surface with square holes. Surprisingly, the chains on this surface keep their three-dimensional properties even when adsorbed onto the surface.
ISSN:0032-3861
1873-2291
DOI:10.1016/S0032-3861(96)00670-2