Reference : Investigation of the surface activity of a poly(styrene-b-dimethylsiloxane) copolymer...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/16716
Investigation of the surface activity of a poly(styrene-b-dimethylsiloxane) copolymer blended within a polystyrene matrix
English
Petitjean, Serge [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Ghitti, G. [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Robert mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Teyssié, Philippe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Marien, José mailto [University of Liège (ULg) > > Laboratory of Physical Chemistry of Surfaces > >]
Riga, Joseph [University of Namur (FUNDP) > > Laboratoire Interdisciplinaire de Spectroscopie Electronique (LISE) > >]
Verbist, Jacques [Univesity of Namur (FUNDP) > > Laboratoire Interdisciplinaire de Spectroscopie Electronique (LISE) > >]
18-Jul-1994
Macromolecules
American Chemical Society
27
4127-4133
Yes (verified by ORBi)
International
0024-9297
Washington
DC
[en] polymer blend
[en] The surface properties of thin polystyrene films are deeply modified by the addition of various amounts of a poly(styrene-b-dimethylsiloxane) copolymer-or poly(S-b-DMS)-as confirmed by a series of analytical methods. In addition to the surface tension which has been estimated from wettability and contact angle measurements, surface composition has been analyzed by X-ray photoelectron spectroscopy (XPS) and secondary ion mass spectrometry (SIMS). Surface studies have been completed by the analysis of the depth distribution of siloxane from the surface by XPS and SIMS. Finally, the surface activity of poly(S-b-DMS) has been investigated in solution. Indeed, changes in the surface tension of polystyrene solutions in THF have been measured in relation to the addition of the diblock copolymer. All the experimental data agree with the complete coverage of the polystyrene films with the poly(S-b-DMS) copolymer. This situation already prevails in the solutions prepared as precursors to the thin polystyrene films. Accordingly, surface characteristics of film freshly prepared by solvent-casting are unaffected by subsequent annealing.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers
http://hdl.handle.net/2268/16716
10.1021/ma00093a014
http://pubs.acs.org/doi/pdf/10.1021/ma00093a014

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