Adsorption characteristics of bottle-brush polymers on silica: effect of side chain and charge density

Langmuir : the ACS Journal of Surfaces and Colloids
Geoffrey OlanyaPer M Claesson

Abstract

The adsorption behavior of bottle-brush polymers with different charge/PEO ratio on silica was studied using optical reflectometry and QCM-D. The results obtained under different solution conditions clearly demonstrate the existence of two distinct adsorption mechanisms depending on the ratio of charge/PEO. In the case of low-charge density brush polymers (0-10 mol %), the adsorption occurs predominantly through the PEO side chains. However, the presence of a small amount of charge along the backbone (as low as 2 mol %) increases the adsorption significantly above that of the uncharged bottle-brush polymer in pure water. As the charge density of the brush polymers is increased to 25 mol % or larger the adsorption occurs predominantly through electrostatic interactions. The adsorbed layer structure was studied by measuring the layer dissipation using QCM-D. The adsorbed layer formed by the uncharged brush polymer dissipates only a small amount of energy that indicates that the brush lie along the surface, the scenario in which the maximum number of PEO side chains interact with the surface. The adsorbed layers formed by the low-charge density brush polymers (2-10 mol %) in water are more extended, which results in large energy d...Continue Reading

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Feb 19, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Torbjörn PetterssonPer M Claesson

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Citations

Oct 28, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·S MorschJ P S Badyal
Aug 16, 2011·Physical Chemistry Chemical Physics : PCCP·Eduardo GuzmánRamón G Rubio
Mar 22, 2014·Soft Matter·Istvan SzilagyiMichal Borkovec
Aug 6, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·T AlejoM M Velázquez
Jul 14, 2011·ACS Applied Materials & Interfaces·Eduardo GuzmánRamón G Rubio
Mar 2, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Trishna SaigalRobert D Tilton
Jun 29, 2010·Journal of Colloid and Interface Science·Geoffrey OlanyaPer M Claesson
Apr 21, 2010·Journal of Colloid and Interface Science·Goran BijelicPer M Claesson
Apr 15, 2008·Journal of Colloid and Interface Science·Ali NaderiPer M Claesson
Dec 3, 2014·Journal of Colloid and Interface Science·Xiaoyan LiuPer M Claesson
Nov 8, 2015·Advances in Colloid and Interface Science·Qian ChenZhenghe Xu
Sep 29, 2011·Journal of Colloid and Interface Science·Cathy E McNameePer M Claesson
May 23, 2012·Journal of Colloid and Interface Science·Olga KrivosheevaPer M Claesson
Feb 16, 2010·Advances in Colloid and Interface Science·P M ClaessonCosima Stubenrauch
Jun 3, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Ali NaderiPer M Claesson
May 8, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Eduardo GuzmánRamón G Rubio
Sep 10, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Imre VargaTibor Gilányi
Sep 4, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Alexander ShovskyPer M Claesson
Jan 7, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Alexander ShovskyPer M Claesson
Aug 28, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Jiani ZhengXiaojun Ma
Jan 28, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Vaidas KlimkeviciusRicardas Makuska
Oct 11, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Xiaoyan LiuPer M Claesson
Apr 5, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Alexander ShovskyPer M Claesson

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