Inverse gas chromatography study of poly(dimethyl siloxane) liquid crystal mixtures

I M Shillcock; G J Price

doi:10.1016/S0032-3861(02)00903-5

Inverse gas chromatography study of poly(dimethyl siloxane) liquid crystal mixtures

I M Shillcock, G J Price

Department of Chemistry

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Abstract

Inverse gas chromatographic (IGC) measurements are reported for 17 hydrocarbon probes on a low molar mass hexyloxycyanobiphenyl liquid crystal (LC) mixed with linear poly(dimethyl siloxane) (PDMS). The retention properties are compared with a side-chain liquid crystalline bearing the same mesogen. The results show that the retention of the LC polymer is significantly different from a mixture with the same composition. DSC and IGC values for the transition temperatures indicate that PDMS does not blend with HCB although some interactions, characterised by a Flory-Huggins interaction parameter, were seen and some effect on the liquid crystalline behaviour was noted. The usefulness and limitations of the IGC technique for characterising this type of polymer-LC system are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	1027-1034
Number of pages	8
Journal	Polymer
Volume	44
Issue number	4
DOIs	https://doi.org/10.1016/S0032-3861(02)00903-5
Publication status	Published - 2003

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ID number: ISI:000180585400014

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10.1016/S0032-3861(02)00903-5

DRAFT 79 Inverse Gas Chromatography study of poly dimethyl siloxane liquid crystal mixtures
NOTICE: this is the author’s version of a work that was accepted for publication in Polymer. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Polymer, v. 44(4), 2003, http://dx.doi.org/10.1016/S0032-3861(02)00903-5
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title = "Inverse gas chromatography study of poly(dimethyl siloxane) liquid crystal mixtures",

abstract = "Inverse gas chromatographic (IGC) measurements are reported for 17 hydrocarbon probes on a low molar mass hexyloxycyanobiphenyl liquid crystal (LC) mixed with linear poly(dimethyl siloxane) (PDMS). The retention properties are compared with a side-chain liquid crystalline bearing the same mesogen. The results show that the retention of the LC polymer is significantly different from a mixture with the same composition. DSC and IGC values for the transition temperatures indicate that PDMS does not blend with HCB although some interactions, characterised by a Flory-Huggins interaction parameter, were seen and some effect on the liquid crystalline behaviour was noted. The usefulness and limitations of the IGC technique for characterising this type of polymer-LC system are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.",

author = "Shillcock, {I M} and Price, {G J}",

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doi = "10.1016/S0032-3861(02)00903-5",

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T1 - Inverse gas chromatography study of poly(dimethyl siloxane) liquid crystal mixtures

AU - Shillcock, I M

AU - Price, G J

N1 - ID number: ISI:000180585400014

PY - 2003

Y1 - 2003

N2 - Inverse gas chromatographic (IGC) measurements are reported for 17 hydrocarbon probes on a low molar mass hexyloxycyanobiphenyl liquid crystal (LC) mixed with linear poly(dimethyl siloxane) (PDMS). The retention properties are compared with a side-chain liquid crystalline bearing the same mesogen. The results show that the retention of the LC polymer is significantly different from a mixture with the same composition. DSC and IGC values for the transition temperatures indicate that PDMS does not blend with HCB although some interactions, characterised by a Flory-Huggins interaction parameter, were seen and some effect on the liquid crystalline behaviour was noted. The usefulness and limitations of the IGC technique for characterising this type of polymer-LC system are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.

AB - Inverse gas chromatographic (IGC) measurements are reported for 17 hydrocarbon probes on a low molar mass hexyloxycyanobiphenyl liquid crystal (LC) mixed with linear poly(dimethyl siloxane) (PDMS). The retention properties are compared with a side-chain liquid crystalline bearing the same mesogen. The results show that the retention of the LC polymer is significantly different from a mixture with the same composition. DSC and IGC values for the transition temperatures indicate that PDMS does not blend with HCB although some interactions, characterised by a Flory-Huggins interaction parameter, were seen and some effect on the liquid crystalline behaviour was noted. The usefulness and limitations of the IGC technique for characterising this type of polymer-LC system are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.

UR - http://dx.doi.org/10.1016/S0032-3861(02)00903-5

U2 - 10.1016/S0032-3861(02)00903-5

DO - 10.1016/S0032-3861(02)00903-5

M3 - Article

SN - 0032-3861

VL - 44

SP - 1027

EP - 1034

JO - Polymer

JF - Polymer

IS - 4

ER -

Inverse gas chromatography study of poly(dimethyl siloxane) liquid crystal mixtures

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