Liquid crystal phase behavior of sterically-stabilized goethite

Esther van den Pol; Andrei V. Petukhov; Dominique M.E. Thies-Weesie; Dmytro V. Byelov; Gert J. Vroege

doi:10.1016/j.jcis.2010.09.002

Liquid crystal phase behavior of sterically-stabilized goethite

Esther van den Pol, Andrei V. Petukhov, Dominique M.E. Thies-Weesie, Dmytro V. Byelov, Gert J. Vroege

Research output: Contribution to journal › Article › Academic › peer-review

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.

Original language	English
Pages (from-to)	354-358
Number of pages	5
Journal	Journal of Colloid and Interface Science
Volume	352
Issue number	2
DOIs	https://doi.org/10.1016/j.jcis.2010.09.002
Publication status	Published - 15 Dec 2010

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

Access to Document

10.1016/j.jcis.2010.09.002

Cite this

@article{b5484cf7131b4570ac810fce3a76451b,

title = "Liquid crystal phase behavior of sterically-stabilized goethite",

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. {\textcopyright} 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",

author = "{van den Pol}, Esther and Petukhov, {Andrei V.} and Thies-Weesie, {Dominique M.E.} and Byelov, {Dmytro V.} and Vroege, {Gert J.}",

year = "2010",

month = dec,

day = "15",

doi = "10.1016/j.jcis.2010.09.002",

language = "English",

volume = "352",

pages = "354--358",

journal = "Journal of Colloid and Interface Science",

issn = "0021-9797",

publisher = "Academic Press Inc.",

number = "2",

}

TY - JOUR

T1 - Liquid crystal phase behavior of sterically-stabilized goethite

AU - van den Pol, Esther

AU - Petukhov, Andrei V.

AU - Thies-Weesie, Dominique M.E.

AU - Byelov, Dmytro V.

AU - Vroege, Gert J.

PY - 2010/12/15

Y1 - 2010/12/15

N2 - 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.

AB - 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.

KW - Colloids

KW - Gelation

KW - Liquid crystals

KW - Magnetic field

KW - Small-angle X-ray scattering

KW - Steric stabilization

KW - ferric hydroxide

KW - polymer

KW - toluene

KW - aqueous solution

KW - article

KW - gelation

KW - liquid crystal

KW - magnetic field

KW - particle size

KW - priority journal

KW - stereochemistry

U2 - 10.1016/j.jcis.2010.09.002

DO - 10.1016/j.jcis.2010.09.002

M3 - Article

SN - 0021-9797

VL - 352

SP - 354

EP - 358

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

IS - 2

ER -

Liquid crystal phase behavior of sterically-stabilized goethite

Abstract

Keywords

Access to Document

Fingerprint

Cite this