Effect of ionic strength and salt identity on poly(N-isopropylacrylamide) brush modified colloidal silica particles

Effect of ionic strength and salt identity on poly(N-isopropylacrylamide) brush modified... Journal of Colloid and Interface Science 516 (2018) 153–161 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Regular Article Effect of ionic strength and salt identity on poly(N-isopropylacrylamide) brush modified colloidal silica particles Ben A. Humphreys, Erica J. Wanless, Grant B. Webber Priority Research Centre for Advanced Particle Processing and Transport, University of Newcastle, Callaghan, NSW 2308, Australia graphical a bstract article i nfo abstract Article history: Hypothesis: The thermoresponse of poly(N-isopropylacrylamide) stabilised particles is influenced by the Received 30 October 2017 presence of salt and is dependent on the concentration, and ions present. The conformation and elec- Revised 14 January 2018 trophoretic mobility of core/shell PNIPAM brush modified silica particles is expected to vary as a function Accepted 15 January 2018 of these specific ion effects. Available online 31 January 2018 Experiments: The thermoresponse of PNIPAM brush modified silica particles was investigated via dynamic light scattering and electrophoretic mobility measurements between 5 and 45 C in the pres- Keywords: ence of 11 different salt solutions. Colloidal silica Findings: Specific ion effects were observed in the presence of salt solutions for concentrations between Core/shell 50 and 1000 mM. The temperature response could be http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Colloid and Interface Science Elsevier

Effect of ionic strength and salt identity on poly(N-isopropylacrylamide) brush modified colloidal silica particles

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Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier Inc.
ISSN
0021-9797
eISSN
1095-7103
D.O.I.
10.1016/j.jcis.2018.01.058
Publisher site
See Article on Publisher Site

Abstract

Journal of Colloid and Interface Science 516 (2018) 153–161 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Regular Article Effect of ionic strength and salt identity on poly(N-isopropylacrylamide) brush modified colloidal silica particles Ben A. Humphreys, Erica J. Wanless, Grant B. Webber Priority Research Centre for Advanced Particle Processing and Transport, University of Newcastle, Callaghan, NSW 2308, Australia graphical a bstract article i nfo abstract Article history: Hypothesis: The thermoresponse of poly(N-isopropylacrylamide) stabilised particles is influenced by the Received 30 October 2017 presence of salt and is dependent on the concentration, and ions present. The conformation and elec- Revised 14 January 2018 trophoretic mobility of core/shell PNIPAM brush modified silica particles is expected to vary as a function Accepted 15 January 2018 of these specific ion effects. Available online 31 January 2018 Experiments: The thermoresponse of PNIPAM brush modified silica particles was investigated via dynamic light scattering and electrophoretic mobility measurements between 5 and 45 C in the pres- Keywords: ence of 11 different salt solutions. Colloidal silica Findings: Specific ion effects were observed in the presence of salt solutions for concentrations between Core/shell 50 and 1000 mM. The temperature response could be

Journal

Journal of Colloid and Interface ScienceElsevier

Published: Apr 15, 2018

References

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