Surface forces between telechelic brushes revisited: the origin of a weak attraction

Langmuir : the ACS Journal of Surfaces and Colloids
Dapeng Cao, Jianzhong Wu

Abstract

Telechelic polymers are useful for surface protection and stabilization of colloidal dispersions by the formation of polymer brushes. A number of theoretical investigations have been reported on a weak attraction between two telechelic brushes when they are at the classical contact, i.e., when the surface separation is approximately equal to the summation of the brush thicknesses. While recent experiments have confirmed the weak attraction between telechelic brushes, its origin remains elusive because of conflicting approximations used in the previous theoretical calculations. In this paper, we have investigated the telechelic polymer-mediated surface forces by using a polymer density functional theory (PDFT) that accounts for both the surface-adhesive energy and segment-level interactions specifically. Within a single theoretical framework, the PDFT is able to capture both the depletion-induced attraction in the presence of weakly adhesive polymers and the steric repulsion between compressed polymer brushes. In comparison of the solvation forces between telechelic brushes with those between brushes formed by surfactant-like polymers and with those between two asymmetric surfaces mediated by telechelic polymers, we conclude tha...Continue Reading

References

Jul 23, 2004·The Journal of Chemical Physics·A MaciołekP Bryk
Jul 23, 2004·The Journal of Chemical Physics·T KreerJ Baschnagel
Sep 16, 2005·The Journal of Chemical Physics·Dapeng Cao, Jianzhong Wu

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Citations

Mar 11, 2008·The European Physical Journal. E, Soft Matter·J SprakelF A M Leermakers
Oct 21, 2006·Annual Review of Physical Chemistry·Jianzhong Wu, Zhidong Li
Apr 21, 2007·The Journal of Chemical Physics·Dapeng Cao, Jianzhong Wu
Apr 3, 2012·The Journal of Chemical Physics·Jian Jiang, Dapeng Cao
Aug 28, 2012·The Journal of Chemical Physics·M BorówkoJ M Ilnytskyi
Jul 2, 2010·The Journal of Chemical Physics·A PatrykiejewZ Sokołowska
Feb 2, 2011·The Journal of Chemical Physics·M BorówkoJ Ilnytskyi
Aug 10, 2011·The Journal of Chemical Physics·Jian JiangDapeng Cao
Apr 14, 2007·The Journal of Chemical Physics·Zhencheng YeJianwen Jiang
Aug 10, 2011·The Journal of Chemical Physics·M BorówkoS Sokołowski
Jun 8, 2013·The Journal of Chemical Physics·M BorówkoZ Usatenko
Apr 10, 2009·The Journal of Chemical Physics·Orest PizioStefan Sokołowski
Jun 24, 2014·The Journal of Chemical Physics·M BorówkoT Staszewski
Feb 2, 2011·Journal of Colloid and Interface Science·M BorówkoT Staszewski
Dec 28, 2010·Journal of Chromatography. a·M BorówkoT Staszewski
Oct 2, 2007·Journal of Colloid and Interface Science·Z Sokołowska, S Sokołowski
Jun 19, 2007·Journal of Colloid and Interface Science·M BorówkoT Staszewski
Feb 22, 2012·The Journal of Physical Chemistry. B·M BorówkoT Staszewski
Aug 16, 2013·The Journal of Physical Chemistry. B·M BorówkoT Staszewski
Oct 9, 2012·The Journal of Physical Chemistry. B·M BorówkoT Staszewski
Sep 15, 2015·Chemical Communications : Chem Comm·Lin LiHongbo Zeng
Dec 13, 2006·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Alberto Striolo
Oct 21, 2016·Polish Journal of Veterinary Sciences·B ŚlaskaJ Dudka
Dec 24, 2018·The Journal of Chemical Physics·Víctor M TrejosStefan Sokołowski
May 31, 2017·Chemistry : a European Journal·Edmondo M BenettiLucca Trachsel
Apr 28, 2009·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Xiaofei XuWenchuan Wang
Aug 21, 2007·The Journal of Physical Chemistry. B·Lisheng Cheng, Dapeng Cao
Aug 12, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Yiyu HuWenchuan Wang
Jan 26, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Jan Forsman, Clifford E Woodward

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