Bidisperse colloids: Nanoparticles and microemulsions in coexistence

被引：3

作者：

Tabor, Rico F. ^{[1
]}

Eastoe, Julian ^{[1
]}

Dowding, Peter J. ^{[2
]}

Grillo, Isabelle ^{[3
]}

Rogers, Sarah E. ^{[4
]}

机构：

[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England

[2] Infineum UK Ltd, Milton Hill Business & Technol Ctr, Abingdon OX13 6BB, Oxon, England

[3] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

[4] Rutherford Appleton Labs, STFC, ISIS, Didcot, Oxon, England

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2010年 / 344卷 / 02期

关键词：

Bidisperse; Colloids; Silica nanoparticles; Water-in-oil; Microemulsions; w/o; ANGLE NEUTRON-SCATTERING; REVERSE MICELLES; OIL ADDITIVES; SURFACTANT; SOLVENTS; SYSTEMS; WATER;

D O I：

10.1016/j.jcis.2010.01.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Mixed 'hard-soft' colloidal systems have been generated in which the 'hard' components (80 rim diameter silica nanoparticles) coexist with a population of 'soft' microemulsion droplets, both structures stabilised by the anionic surfactant sodium bis(ethylhexyl)sulfosuccinate (AOT) with toluene as solvent. The addition of water to swell the inverse micelles to form microemulsion droplets appears to increase attractive interactions between the silica particles (determined by DLS), possibly due to adsorption of some water at the silica-toluene interface; however, long-term stability of the dispersions is maintained. Small-angle neutron scattering was used to examine the structures present in these new colloidal systems. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：447 / 450

页数：4

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