Measurement of degree of order in mixed polarised fluorescent polymer liquid crystal films

Andrew P. Davey; Robert G. Howard; Bernd Lahr; Werner J. Blau; Hugh J. Byrne

doi:10.1080/10587259808025385

Measurement of degree of order in mixed polarised fluorescent polymer liquid crystal films

Andrew P. Davey, Robert G. Howard, Bernd Lahr, Werner J. Blau, Hugh J. Byrne

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

Abstract

Raman spectroscopy is used to investigate the degree of order found in in-situ photopolymerised films exhibiting polarised emission. Studies indicate that the mixed system shows different degrees of order for its two molecular components. The degree of order was measured in the mesophase for the mixed monomers prior to polymerisation and was found to be in close agreement with the order of the two components measured in equivalent cured films. These studies have therefore provided an insight into the nature of molecular ordering in these mixed systems and shows that the in-situ photopolymerisation process does not greatly change the ordering in the system.

Original language	English
Pages (from-to)	79-90
Number of pages	12
Journal	Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
Volume	325
DOIs	https://doi.org/10.1080/10587259808025385 https://doi.org/10.21427/csns-2q35
Publication status	Published - 1998

Keywords

Order
Polarised emission
Raman spectroscopy

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10.1080/10587259808025385
10.21427/csns-2q35Licence: CC BY-NC-SA

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Davey, A. P., Howard, R. G., Lahr, B., Blau, W. J., & Byrne, H. J. (1998). Measurement of degree of order in mixed polarised fluorescent polymer liquid crystal films. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, 325, 79-90. https://doi.org/10.1080/10587259808025385, https://doi.org/10.21427/csns-2q35

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title = "Measurement of degree of order in mixed polarised fluorescent polymer liquid crystal films",

abstract = "Raman spectroscopy is used to investigate the degree of order found in in-situ photopolymerised films exhibiting polarised emission. Studies indicate that the mixed system shows different degrees of order for its two molecular components. The degree of order was measured in the mesophase for the mixed monomers prior to polymerisation and was found to be in close agreement with the order of the two components measured in equivalent cured films. These studies have therefore provided an insight into the nature of molecular ordering in these mixed systems and shows that the in-situ photopolymerisation process does not greatly change the ordering in the system.",

keywords = "Order, Polarised emission, Raman spectroscopy",

author = "Davey, \{Andrew P.\} and Howard, \{Robert G.\} and Bernd Lahr and Blau, \{Werner J.\} and Byrne, \{Hugh J.\}",

note = "Funding Information: This work was carried out under the EU ESPRIT Long Term Research Programme (LUPO project no. 20038) and was also partially funded by the Forbairt Basic Research Programme. The authors are grateful to Dr. Fiona Coyle for performing the D.S.C. measurements.",

year = "1998",

doi = "10.1080/10587259808025385",

language = "English",

volume = "325",

pages = "79--90",

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

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TY - JOUR

T1 - Measurement of degree of order in mixed polarised fluorescent polymer liquid crystal films

AU - Davey, Andrew P.

AU - Howard, Robert G.

AU - Lahr, Bernd

AU - Blau, Werner J.

AU - Byrne, Hugh J.

N1 - Funding Information: This work was carried out under the EU ESPRIT Long Term Research Programme (LUPO project no. 20038) and was also partially funded by the Forbairt Basic Research Programme. The authors are grateful to Dr. Fiona Coyle for performing the D.S.C. measurements.

PY - 1998

Y1 - 1998

N2 - Raman spectroscopy is used to investigate the degree of order found in in-situ photopolymerised films exhibiting polarised emission. Studies indicate that the mixed system shows different degrees of order for its two molecular components. The degree of order was measured in the mesophase for the mixed monomers prior to polymerisation and was found to be in close agreement with the order of the two components measured in equivalent cured films. These studies have therefore provided an insight into the nature of molecular ordering in these mixed systems and shows that the in-situ photopolymerisation process does not greatly change the ordering in the system.

AB - Raman spectroscopy is used to investigate the degree of order found in in-situ photopolymerised films exhibiting polarised emission. Studies indicate that the mixed system shows different degrees of order for its two molecular components. The degree of order was measured in the mesophase for the mixed monomers prior to polymerisation and was found to be in close agreement with the order of the two components measured in equivalent cured films. These studies have therefore provided an insight into the nature of molecular ordering in these mixed systems and shows that the in-situ photopolymerisation process does not greatly change the ordering in the system.

KW - Order

KW - Polarised emission

KW - Raman spectroscopy

UR - https://www.scopus.com/pages/publications/33644691651

U2 - 10.1080/10587259808025385

DO - 10.1080/10587259808025385

M3 - Article

AN - SCOPUS:33644691651

SN - 1058-725X

VL - 325

SP - 79

EP - 90

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 -

Measurement of degree of order in mixed polarised fluorescent polymer liquid crystal films

Abstract

Keywords

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