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Determination of the carbonyl index of polyethylene and polypropylene using specified area under band methodology with ATR-FTIR spectroscopy

Open access
Almond, Jasmine, Sugumaar, Piriya, Wenzel, Margot N., Hill, Gavin, Wallis, Christopher·2020·e-Polymers

Abstract

The current measurement techniques described in the literature for the determination of the carbonyl index (CI) for polyolefins such as polyethylene and polypropylene were compared and contrasted. These were all found to be inconsistent or inaccurate and were not capable of differentiating significant changes in carbonyl peak evolution throughout accelerated ageing. As a consequence of these findings, a methodology, specified area under band (SAUB) is presented here to more accurately represent the CI as a general means of reporting. The increased precision in the methodology is explained and compared to other methodologies for determining CI. The SAUB method is also shown to be capable of elucidating the differences in relative extent and rates of CI for different polyolefins, exposed to the same conditions over the same time period.

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Metadata

Authors
Almond, J., Sugumaar, P., Wenzel, M. N., Hill, G., & Wallis, C.
Venue
e-Polymers
Published
2020-01-01
Volume
20
Issue
1
Pages
369-381
ISSN
  • 1618-7229 (ISSN-L)
  • 2197-4586
OpenAlex
W3043063284
Cited by
601
References
20
FWCI
19.90
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Determination of the carbonyl index of polyethylene and polypropylene using specified area under band methodology with ATR-FTIR spectroscopy. https://app.cochat.ai/papers/10.1515/epoly-2020-0041
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Almond, J., Sugumaar, P., Wenzel, M. N., Hill, G., & Wallis, C. (2020). Determination of the carbonyl index of polyethylene and polypropylene using specified area under band methodology with ATR-FTIR spectroscopy. e-Polymers. https://doi.org/10.1515/epoly-2020-0041

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