Strain measurement and deformation analysis in a diacetylene-containing urethane copolymer using Raman spectroscopy

Xiao Hu; John L. Stanford; Robert J. Young

doi:10.1016/0032-3861(94)90053-1

Strain measurement and deformation analysis in a diacetylene-containing urethane copolymer using Raman spectroscopy

Xiao Hu, John L. Stanford, Robert J. Young^*

^*Corresponding author for this work

University of Manchester

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

14 Citations (Scopus)

Abstract

The opto-mechanical behaviour of a rigid diacetylene-containing segmented copolyurethane has been investigated in detail by using Raman spectroscopy. Experiments were carried out to determine the tensile and compressive strain dependence of the Raman frequency of the CC triple bond stretching mode in the copolymer. A similar initial strain-induced frequency shift of 4.7±0.5 cm^-1/% strain was found in both tensile and compression tests. Angular strains were measured by obtaining the Raman spectra of the copolymer at different angles of the laser beam polarization with respect to the principal tensile axis, and it was found that the experimental results are in general agreement with classical elasticity theory, although they differ in detail. The molecular deformation of the polydiacetylene moieties in the copolymer has also been discussed.

Original language	English
Pages (from-to)	80-85
Number of pages	6
Journal	Polymer
Volume	35
Issue number	1
DOIs	https://doi.org/10.1016/0032-3861(94)90053-1
Publication status	Published - Jan 1994
Externally published	Yes

ASJC Scopus Subject Areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

Keywords

diacetylene copolyurethane
opto-mechanical behaviour
Raman spectroscopy

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10.1016/0032-3861(94)90053-1

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title = "Strain measurement and deformation analysis in a diacetylene-containing urethane copolymer using Raman spectroscopy",

abstract = "The opto-mechanical behaviour of a rigid diacetylene-containing segmented copolyurethane has been investigated in detail by using Raman spectroscopy. Experiments were carried out to determine the tensile and compressive strain dependence of the Raman frequency of the CC triple bond stretching mode in the copolymer. A similar initial strain-induced frequency shift of 4.7±0.5 cm-1/% strain was found in both tensile and compression tests. Angular strains were measured by obtaining the Raman spectra of the copolymer at different angles of the laser beam polarization with respect to the principal tensile axis, and it was found that the experimental results are in general agreement with classical elasticity theory, although they differ in detail. The molecular deformation of the polydiacetylene moieties in the copolymer has also been discussed.",

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year = "1994",

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T1 - Strain measurement and deformation analysis in a diacetylene-containing urethane copolymer using Raman spectroscopy

AU - Hu, Xiao

AU - Stanford, John L.

AU - Young, Robert J.

PY - 1994/1

Y1 - 1994/1

N2 - The opto-mechanical behaviour of a rigid diacetylene-containing segmented copolyurethane has been investigated in detail by using Raman spectroscopy. Experiments were carried out to determine the tensile and compressive strain dependence of the Raman frequency of the CC triple bond stretching mode in the copolymer. A similar initial strain-induced frequency shift of 4.7±0.5 cm-1/% strain was found in both tensile and compression tests. Angular strains were measured by obtaining the Raman spectra of the copolymer at different angles of the laser beam polarization with respect to the principal tensile axis, and it was found that the experimental results are in general agreement with classical elasticity theory, although they differ in detail. The molecular deformation of the polydiacetylene moieties in the copolymer has also been discussed.

AB - The opto-mechanical behaviour of a rigid diacetylene-containing segmented copolyurethane has been investigated in detail by using Raman spectroscopy. Experiments were carried out to determine the tensile and compressive strain dependence of the Raman frequency of the CC triple bond stretching mode in the copolymer. A similar initial strain-induced frequency shift of 4.7±0.5 cm-1/% strain was found in both tensile and compression tests. Angular strains were measured by obtaining the Raman spectra of the copolymer at different angles of the laser beam polarization with respect to the principal tensile axis, and it was found that the experimental results are in general agreement with classical elasticity theory, although they differ in detail. The molecular deformation of the polydiacetylene moieties in the copolymer has also been discussed.

KW - diacetylene copolyurethane

KW - opto-mechanical behaviour

KW - Raman spectroscopy

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Strain measurement and deformation analysis in a diacetylene-containing urethane copolymer using Raman spectroscopy

Abstract

ASJC Scopus Subject Areas

Keywords

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