Liquid crystal phase behavior of sterically-stabilized goethite
Publication date
2010-12-15
Authors
van den Pol, E
Petukhov, A.V.
Thies - Weesie, Dominique
Byelov, Dmytro V.
Vroege, Gert Jan
Editors
Advisors
Supervisors
Document Type
Article
Metadata
Show full item recordCollections
License
Abstract
The liquid crystalline phase behavior of sterically-stabilized goethite particles in toluene was studied using small-angle X-ray scattering. The results were compared with those from charged particles in water, with and without magnetic field: similarly rich phase behavior was found. Furthermore, the special magnetic properties were retained after coating the particles with amino-functionalized polyisobutylene chains. A remarkable difference between the aqueous and toluene samples is the latter's tendency to form gels. Smaller domains of the different liquid crystalline phases were observed and the columnar phase does not fully develop, furthermore a higher field is needed to align the full sample. © 2010 Elsevier Inc.
Keywords
Colloids, Gelation, Liquid crystals, Magnetic field, Small-angle X-ray scattering, Steric stabilization, ferric hydroxide, polymer, toluene, aqueous solution, article, gelation, liquid crystal, magnetic field, particle size, priority journal, stereochemistry
Citation
van den Pol, E, Petukhov, A V, Thies-Weesie, D M E, Byelov, D V & Vroege, G J 2010, 'Liquid crystal phase behavior of sterically-stabilized goethite', Journal of Colloid and Interface Science, vol. 352, no. 2, pp. 354-358. https://doi.org/10.1016/j.jcis.2010.09.002