Surfactant mediated particle aggregation in nonpolar solvents

Article Article scientifique Article Surfactant mediated particle aggregation in nonpolar solvents eng 2019 author Farrokhbin Mojtaba 902397 author Stojimirovic Biljana 853800 author Galli Marco 912781 author Khajeh Aminian Mohsen author Hallez Yannick author Trefalt Gregor 786132 18866-18876 10.1039/C9CP01985E 1463-9076 http://xlink.rsc.org/?DOI=C9CP01985E The aggregation behavior of particles in nonpolar media is studied with time-resolved light scattering. At low surfactant concentrations particles are weakly charged and suspensions are not stable. The suspensions become progressively more stable with increasing urfactant concentration as particles become more highly charged. At high concentrations the particles become neutralized and aggregation is again fast. The theory of Derjaguin, Landau, Verwey, and Overbeek (DLVO) is able to predict the stability ratios quantitatively by using the experimentally measured surface charges, screening lengths and van der Waals forces. Dewey 540 Swiss National Science Foundation 162420 CH 40 Département de chimie minérale, analytique et appliquée 145 false 773 Groupe Borkovec https://doi.org/10.5281/zenodo.3480007 Physical Chemistry Chemical Physics 21 35 0e547c07-8462-49cb-9c0d-03341fbb839c Article (Accepted version) Public paper_mojtaba.pdf 2915768 application/pdf CC BY openAccess Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée

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Surfactant mediated particle aggregation in nonpolar solvents	Physical Chemistry Chemical Physics			2019	404	402

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Farrokhbin, Mojtaba