Interaction forces between adsorbed polymer layers

Advances in Colloid and Interface Science
Tharwat F Tadros

Abstract

The interaction forces between adsorbed polymer layers were investigated. Two types of graft copolymers that were adsorbed on hydrophobic surfaces have been investigated: (i) a graft copolymer consisting of polymethylmethacrylate/polymethacrylic acid back bone (the B chain) on which several poly(ethylene oxide) chains are grafted (to be referred to as PMMA/PEO(n)); and (ii) a graft copolymer consisting of inulin (linear polyfructose with degree of polymerization >23) (the A chain) on which several C(12) chains are grafted (INUTEC SP1). In the first case adsorbed layers of the graft copolymer were obtained on mica sheets and the interaction forces were measured using the surface force apparatus. In the second case the interaction forces were measured using Atomic Force Microscopy (AFM). For this purpose a hydrophobically modified glass sphere was attached to the tip of the cantilever of the AFM and the glass plate was also made hydrophobic. Both the sphere and the glass plate contained an adsorbed layer of INUTEC SP1. In the surface forces apparatus one essentially measures the energy E(D)-distance D curves for the graft copolymer of PMMA/PEO(n) between mica surfaces bearing the graft copolymer and this could be converted to int...Continue Reading

References

May 18, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Jérémie NestorTharwat F Tadros
Feb 7, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·D ExerowaTh Tadros
Apr 17, 2007·Journal of Colloid and Interface Science·Jérémie NestorTharwat F Tadros

Citations

Nov 28, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Xiao ZhangWei Wei

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