Lyotropic smectic b phase formed in suspensions of charged colloidal platelets

Dzina Kleshchanok; Peter Holmqvist; Janne-Mieke Meijer; Henk N.W. Lekkerkerker

doi:10.1021/ja300527w

Lyotropic smectic b phase formed in suspensions of charged colloidal platelets

Dzina Kleshchanok (Corresponding author), Peter Holmqvist, Janne-Mieke Meijer, Henk N.W. Lekkerkerker

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

39 Citations (Scopus)

Abstract

Here, we present the first observation of a smectic B (Sm _B) phase in a system of charged colloidal gibbsite platelets suspended in dimethyl sulfoxide (DMSO). The use of DMSO, a polar aprotic solvent, leads to a long range of the electrostatic Coulomb repulsion between platelets. We believe this to be responsible for the formation of the layered liquid crystalline phase consisting of hexagonally ordered particles, that is, the Sm _B phase. We support our finding by high-resolution X-ray scattering experiments, which additionally indicate a high degree of ordering in the Sm _B phase.

Original language	English
Pages (from-to)	5985-5990
Number of pages	6
Journal	Journal of the American Chemical Society
Volume	134
Issue number	13
DOIs	https://doi.org/10.1021/ja300527w
Publication status	Published - 4 Apr 2012
Externally published	Yes

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abstract = "Here, we present the first observation of a smectic B (Sm B) phase in a system of charged colloidal gibbsite platelets suspended in dimethyl sulfoxide (DMSO). The use of DMSO, a polar aprotic solvent, leads to a long range of the electrostatic Coulomb repulsion between platelets. We believe this to be responsible for the formation of the layered liquid crystalline phase consisting of hexagonally ordered particles, that is, the Sm B phase. We support our finding by high-resolution X-ray scattering experiments, which additionally indicate a high degree of ordering in the Sm B phase.",

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AU - Holmqvist, Peter

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AU - Lekkerkerker, Henk N.W.

PY - 2012/4/4

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N2 - Here, we present the first observation of a smectic B (Sm B) phase in a system of charged colloidal gibbsite platelets suspended in dimethyl sulfoxide (DMSO). The use of DMSO, a polar aprotic solvent, leads to a long range of the electrostatic Coulomb repulsion between platelets. We believe this to be responsible for the formation of the layered liquid crystalline phase consisting of hexagonally ordered particles, that is, the Sm B phase. We support our finding by high-resolution X-ray scattering experiments, which additionally indicate a high degree of ordering in the Sm B phase.

AB - Here, we present the first observation of a smectic B (Sm B) phase in a system of charged colloidal gibbsite platelets suspended in dimethyl sulfoxide (DMSO). The use of DMSO, a polar aprotic solvent, leads to a long range of the electrostatic Coulomb repulsion between platelets. We believe this to be responsible for the formation of the layered liquid crystalline phase consisting of hexagonally ordered particles, that is, the Sm B phase. We support our finding by high-resolution X-ray scattering experiments, which additionally indicate a high degree of ordering in the Sm B phase.

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Lyotropic smectic b phase formed in suspensions of charged colloidal platelets

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