Influence of the solvent environment on the contact mechanics of tip-sample interactions in friction force microscopy of poly(ethylene terephthalate) films

Langmuir : the ACS Journal of Surfaces and Colloids
Claire R Hurley, Graham J Leggett

Abstract

Friction force microscopy measurements have been carried out on free-standing films of poly(ethylene terephthalate) in a variety of different media. In ethanol, the adhesion force was small, and the friction-load relationship was linear. In perfluorodecalin, nonlinearity was observed in the friction-load relationship, and the data have been found to fit the Johnson-Kendall-Roberts model of contact mechanics. The behavior in hexadecane was also characterized by a single-asperity contact model, but in this case, the data were found to fit the Derjaguin-Müller-Toporov model. It is suggested that these differences are due to the different strengths of tip-sample adhesion, which arise from the differences in the dielectric constants of the media: in ethanol, which has a high dielectric constant, the friction force varies linearly with the load, whereas in media of low dielectric constant, adhesion-limited behavior is observed.

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Citations

May 13, 2011·Journal of the American Chemical Society·Katerina BusuttilGraham J Leggett
May 25, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Reynier RevillaChen Wang
Jan 5, 2013·Faraday Discussions·Katerina BusuttilGraham J Leggett
Dec 5, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Nikolaos NikogeorgosGraham J Leggett
Oct 30, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Stefan J EderGerhard Betz
Apr 11, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Shivaprakash N RamakrishnaEdmondo M Benetti
Jan 18, 2020·Nanoscale·Evangelos LiamasAnwesha Sarkar
Nov 5, 2008·Nanotechnology·Inhee ChoiJongheop Yi
May 31, 2017·Chemistry : a European Journal·Edmondo M BenettiLucca Trachsel
Mar 25, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Claire R HurleyBuddy D Ratner
Sep 30, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Y Yang, M Ruths
Jul 17, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Zhenyu ZhangGraham J Leggett
Feb 16, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Zhenyu ZhangGraham J Leggett
Oct 18, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Trevor T FosterEoghan McAlpine
May 29, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Ewa TochaG Julius Vancso
Oct 13, 2006·The Journal of Physical Chemistry. B·Younghun Kim, Jongheop Yi

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