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Surface forces and characterization of glass surfaces bearing grafted polymers: solvent dependence
KTH, Superseded Departments, Chemistry.
2002 (English)In: Journal of Adhesion Science and Technology, ISSN 0169-4243, E-ISSN 1568-5616, Vol. 16, no 7, 965-981 p.Article in journal (Refereed) Published
Abstract [en]

The interactions between two glass surfaces bearing grafted polymer brushes of poly(12-hydroxystearic acid) (PHS) have been controlled by altering the solvent quality. The graft density was obtained through XPS and the solvent used was a mixture of ethanol and heptane, which was varied from good to poor solvency conditions by either a change of the relative concentrations of the two solvents, or by altering the temperature. The system is shown to be remarkably sensitive to the solvency conditions around the theta position. It was also shown that hydrodynamic forces could be accurately and routinely accounted for in systems where the forces were monotonically repulsive.

Place, publisher, year, edition, pages
2002. Vol. 16, no 7, 965-981 p.
Keyword [en]
surface forces, polyhydroxystearate, theta temperature, steric force, segment-segment interaction, hydrodynamic force, mixed solvent, grafted polymer, XPS, adsorbed polymer, silica surfaces, solid-surfaces, mica surfaces, poor solvent, adsorption, brushes, layers, polystyrene, interface
URN: urn:nbn:se:kth:diva-21696ISI: 000176736100012OAI: diva2:340394
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Rutland, Mark W
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