Deformation studies of thermotropic aromatic copolyesters using NIR Raman spectroscopy

Y. Ward; R.J. Young

doi:10.1016/S0032-3861(01)00232-4

Deformation studies of thermotropic aromatic copolyesters using NIR Raman spectroscopy

Y. Ward, R.J. Young

Materials Engineering

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

Abstract

Near infrared (NIR) Raman spectroscopy has been used to investigate the deformation behaviour of highly oriented fibres and tapes made from thermotropic aromatic copolyesters. It has been found that a number of Raman bands of thermotropic aromatic copolyesters show linear shifts towards lower wavenumbers with stress and strain following tensile deformation. The strain and stress dependencies of the 1600 cm-1 band due to stretching of the p-phenyl ring, have been studied in detail and discussed in relation to values reported for high-performance aromatic polymer fibres. The behaviour has been discussed in terms of the microstructure of the thermotropic aromatic copolyester materials compared with that of other highly-oriented aromatic polymer fibres. © 2001 Elsevier Science Ltd.

Original language	English
Pages (from-to)	7857-7863
Number of pages	6
Journal	Polymer
Volume	42
Issue number	18
DOIs	https://doi.org/10.1016/S0032-3861(01)00232-4 https://doi.org/10.1016/S0032-3861(01)00232-4
Publication status	Published - 31 May 2001

Keywords

Deformation
Near IR Raman spectroscopy
Thermotropic aromatic copolyesters

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title = "Deformation studies of thermotropic aromatic copolyesters using NIR Raman spectroscopy",

abstract = "Near infrared (NIR) Raman spectroscopy has been used to investigate the deformation behaviour of highly oriented fibres and tapes made from thermotropic aromatic copolyesters. It has been found that a number of Raman bands of thermotropic aromatic copolyesters show linear shifts towards lower wavenumbers with stress and strain following tensile deformation. The strain and stress dependencies of the 1600 cm-1 band due to stretching of the p-phenyl ring, have been studied in detail and discussed in relation to values reported for high-performance aromatic polymer fibres. The behaviour has been discussed in terms of the microstructure of the thermotropic aromatic copolyester materials compared with that of other highly-oriented aromatic polymer fibres. {\textcopyright} 2001 Elsevier Science Ltd.",

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AU - Young, R.J.

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N2 - Near infrared (NIR) Raman spectroscopy has been used to investigate the deformation behaviour of highly oriented fibres and tapes made from thermotropic aromatic copolyesters. It has been found that a number of Raman bands of thermotropic aromatic copolyesters show linear shifts towards lower wavenumbers with stress and strain following tensile deformation. The strain and stress dependencies of the 1600 cm-1 band due to stretching of the p-phenyl ring, have been studied in detail and discussed in relation to values reported for high-performance aromatic polymer fibres. The behaviour has been discussed in terms of the microstructure of the thermotropic aromatic copolyester materials compared with that of other highly-oriented aromatic polymer fibres. © 2001 Elsevier Science Ltd.

AB - Near infrared (NIR) Raman spectroscopy has been used to investigate the deformation behaviour of highly oriented fibres and tapes made from thermotropic aromatic copolyesters. It has been found that a number of Raman bands of thermotropic aromatic copolyesters show linear shifts towards lower wavenumbers with stress and strain following tensile deformation. The strain and stress dependencies of the 1600 cm-1 band due to stretching of the p-phenyl ring, have been studied in detail and discussed in relation to values reported for high-performance aromatic polymer fibres. The behaviour has been discussed in terms of the microstructure of the thermotropic aromatic copolyester materials compared with that of other highly-oriented aromatic polymer fibres. © 2001 Elsevier Science Ltd.

KW - Deformation

KW - Near IR Raman spectroscopy

KW - Thermotropic aromatic copolyesters

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DO - 10.1016/S0032-3861(01)00232-4

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VL - 42

SP - 7857

EP - 7863

JO - Polymer

JF - Polymer

IS - 18

ER -

Deformation studies of thermotropic aromatic copolyesters using NIR Raman spectroscopy

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