Thermal degradation of polyurethane-backed poly(vinyl chloride) studied by Raman microline focus spectrometry

M. Bowden; J. Bradley; Leslie Dix; D. Gardiner; N. Dixon; D. Gerrard

doi:10.1016/0032-3861(94)90838-9

Thermal degradation of polyurethane-backed poly(vinyl chloride) studied by Raman microline focus spectrometry

M. Bowden, J. Bradley, Leslie Dix, D. Gardiner, N. Dixon, D. Gerrard

Applied Sciences

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

12 Citations (Scopus)

Abstract

Raman microline focus spectrometry has been utilized to record spatially resolved and spatially averaged Raman spectra from degraded poly(vinyl chloride) (PVC) sheet. Characteristics of simultaneous thermal and chemical degradation occurring in commercial polyurethane (PU)-foam-backed PVC sheet have been inferred from the observed Raman data. From a comparison of the data recorded across a section of the sheet, the presence of PU foam is shown to increase the degradation rate of PVC. In addition, higher concentrations, higher rates of formation and longer conjugation lengths of those polyenes formed during degradation are found at the PVC/PU contact interface. This is attributed to the extra chemical degradation occurring at the PVC/PU interface due to catalysis of dehydrochlorination by amine residues in the PU.

Original language	English
Pages (from-to)	1654-1657
Journal	Polymer
Volume	35
Issue number	8
DOIs	https://doi.org/10.1016/0032-3861(94)90838-9
Publication status	Published - Apr 1994

Access to Document

10.1016/0032-3861(94)90838-9

Cite this

@article{4d157bd7692b429b8cacca31f52e8515,

title = "Thermal degradation of polyurethane-backed poly(vinyl chloride) studied by Raman microline focus spectrometry",

abstract = "Raman microline focus spectrometry has been utilized to record spatially resolved and spatially averaged Raman spectra from degraded poly(vinyl chloride) (PVC) sheet. Characteristics of simultaneous thermal and chemical degradation occurring in commercial polyurethane (PU)-foam-backed PVC sheet have been inferred from the observed Raman data. From a comparison of the data recorded across a section of the sheet, the presence of PU foam is shown to increase the degradation rate of PVC. In addition, higher concentrations, higher rates of formation and longer conjugation lengths of those polyenes formed during degradation are found at the PVC/PU contact interface. This is attributed to the extra chemical degradation occurring at the PVC/PU interface due to catalysis of dehydrochlorination by amine residues in the PU.",

keywords = "degradation, microline focus spectrometry, poly(vinyl chloride)",

author = "M. Bowden and J. Bradley and Leslie Dix and D. Gardiner and N. Dixon and D. Gerrard",

year = "1994",

month = apr,

doi = "10.1016/0032-3861(94)90838-9",

language = "English",

volume = "35",

pages = "1654--1657",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier",

number = "8",

}

TY - JOUR

T1 - Thermal degradation of polyurethane-backed poly(vinyl chloride) studied by Raman microline focus spectrometry

AU - Bowden, M.

AU - Bradley, J.

AU - Dix, Leslie

AU - Gardiner, D.

AU - Dixon, N.

AU - Gerrard, D.

PY - 1994/4

Y1 - 1994/4

N2 - Raman microline focus spectrometry has been utilized to record spatially resolved and spatially averaged Raman spectra from degraded poly(vinyl chloride) (PVC) sheet. Characteristics of simultaneous thermal and chemical degradation occurring in commercial polyurethane (PU)-foam-backed PVC sheet have been inferred from the observed Raman data. From a comparison of the data recorded across a section of the sheet, the presence of PU foam is shown to increase the degradation rate of PVC. In addition, higher concentrations, higher rates of formation and longer conjugation lengths of those polyenes formed during degradation are found at the PVC/PU contact interface. This is attributed to the extra chemical degradation occurring at the PVC/PU interface due to catalysis of dehydrochlorination by amine residues in the PU.

AB - Raman microline focus spectrometry has been utilized to record spatially resolved and spatially averaged Raman spectra from degraded poly(vinyl chloride) (PVC) sheet. Characteristics of simultaneous thermal and chemical degradation occurring in commercial polyurethane (PU)-foam-backed PVC sheet have been inferred from the observed Raman data. From a comparison of the data recorded across a section of the sheet, the presence of PU foam is shown to increase the degradation rate of PVC. In addition, higher concentrations, higher rates of formation and longer conjugation lengths of those polyenes formed during degradation are found at the PVC/PU contact interface. This is attributed to the extra chemical degradation occurring at the PVC/PU interface due to catalysis of dehydrochlorination by amine residues in the PU.

KW - degradation

KW - microline focus spectrometry

KW - poly(vinyl chloride)

U2 - 10.1016/0032-3861(94)90838-9

DO - 10.1016/0032-3861(94)90838-9

M3 - Article

VL - 35

SP - 1654

EP - 1657

JO - Polymer

JF - Polymer

SN - 0032-3861

IS - 8

ER -

Thermal degradation of polyurethane-backed poly(vinyl chloride) studied by Raman microline focus spectrometry

Abstract

Access to Document

Fingerprint

Cite this