Liquid crystal wetting in cylindrical pores

Xuewu Liu; Daniele Finotello

doi:10.1080/10587250108028654

Liquid crystal wetting in cylindrical pores

Xuewu Liu, Daniele Finotello

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

1 Scopus citations

Abstract

We have performed a calorimetry and deuterium nuclear magnetic resonance study for a member of the liquid crystal homologous series, n̄.O.m̄ , in bulk and confined to the 0.2 μm cylindrical pores of aluminum oxide Anopore membranes. It was shown in an ellipsometry study by Lucht and coworkers that this material shows a prewetting nematic transition at an air interface. Thermodynamically, at the Anopore solid pore walls these liquid crystals also exhibit unique wetting properties: a distinct signature in the specific heat, a "bump" at a temperature approximately 0.5 K above T_NI is found. We believe that such signature is related to the manner that the nematic liquid crystal wets the solid surfaces.

Original language	English (US)
Pages (from-to)	341-351
Number of pages	11
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	367
DOIs	https://doi.org/10.1080/10587250108028654
State	Published - 2001

Keywords

Confinement
Specific heat
Wetting

ASJC Scopus subject areas

Condensed Matter Physics

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10.1080/10587250108028654

Cite this

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title = "Liquid crystal wetting in cylindrical pores",

abstract = "We have performed a calorimetry and deuterium nuclear magnetic resonance study for a member of the liquid crystal homologous series, {\=n}.O.{\=m} , in bulk and confined to the 0.2 μm cylindrical pores of aluminum oxide Anopore membranes. It was shown in an ellipsometry study by Lucht and coworkers that this material shows a prewetting nematic transition at an air interface. Thermodynamically, at the Anopore solid pore walls these liquid crystals also exhibit unique wetting properties: a distinct signature in the specific heat, a {"}bump{"} at a temperature approximately 0.5 K above TNI is found. We believe that such signature is related to the manner that the nematic liquid crystal wets the solid surfaces.",

keywords = "Confinement, Specific heat, Wetting",

author = "Xuewu Liu and Daniele Finotello",

note = "Funding Information: We are extremely gratedbl for the support h m the NSF-ALCOM Grant No. 89-20147 and to V. Surendranath for synthe!sii and deuteratiag the liquid crystal material. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

year = "2001",

doi = "10.1080/10587250108028654",

language = "English (US)",

volume = "367",

pages = "341--351",

journal = "Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals",

issn = "1058-725X",

publisher = "Taylor and Francis Ltd.",

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TY - JOUR

T1 - Liquid crystal wetting in cylindrical pores

AU - Liu, Xuewu

AU - Finotello, Daniele

N1 - Funding Information: We are extremely gratedbl for the support h m the NSF-ALCOM Grant No. 89-20147 and to V. Surendranath for synthe!sii and deuteratiag the liquid crystal material. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2001

Y1 - 2001

N2 - We have performed a calorimetry and deuterium nuclear magnetic resonance study for a member of the liquid crystal homologous series, n̄.O.m̄ , in bulk and confined to the 0.2 μm cylindrical pores of aluminum oxide Anopore membranes. It was shown in an ellipsometry study by Lucht and coworkers that this material shows a prewetting nematic transition at an air interface. Thermodynamically, at the Anopore solid pore walls these liquid crystals also exhibit unique wetting properties: a distinct signature in the specific heat, a "bump" at a temperature approximately 0.5 K above TNI is found. We believe that such signature is related to the manner that the nematic liquid crystal wets the solid surfaces.

AB - We have performed a calorimetry and deuterium nuclear magnetic resonance study for a member of the liquid crystal homologous series, n̄.O.m̄ , in bulk and confined to the 0.2 μm cylindrical pores of aluminum oxide Anopore membranes. It was shown in an ellipsometry study by Lucht and coworkers that this material shows a prewetting nematic transition at an air interface. Thermodynamically, at the Anopore solid pore walls these liquid crystals also exhibit unique wetting properties: a distinct signature in the specific heat, a "bump" at a temperature approximately 0.5 K above TNI is found. We believe that such signature is related to the manner that the nematic liquid crystal wets the solid surfaces.

KW - Confinement

KW - Specific heat

KW - Wetting

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U2 - 10.1080/10587250108028654

DO - 10.1080/10587250108028654

M3 - Article

AN - SCOPUS:31644445099

SN - 1058-725X

VL - 367

SP - 341

EP - 351

JO - Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals

ER -

Liquid crystal wetting in cylindrical pores

Abstract

Keywords

ASJC Scopus subject areas

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