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Identification of chemical species created during γ‐irradiation of antioxidant used in polyethylene and polyethylene‐ co ‐vinyl acetate multilayer film
Author(s) -
Dorey Samuel,
Gaston Fanny,
GirardPerier Nina,
Dupuy Nathalie,
Marque Sylvain R.A.,
Barbaroux Magali,
Audran Gérard
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.49336
Subject(s) - polyolefin , polyethylene , degradation (telecommunications) , vinyl acetate , irradiation , polymer , food irradiation , primary (astronomy) , chemistry , gamma irradiation , materials science , identification (biology) , food packaging , chemical engineering , organic chemistry , computer science , food science , engineering , telecommunications , physics , layer (electronics) , astronomy , nuclear physics , copolymer , botany , biology
With the increasing use of γ‐irradiated containers made of multilayer polymeric flexible films for food and biopharmaceutical applications, the possible migration of degradation products of the polymers and their additives is becoming a topic of concern. This article aims at highly reliably identifying the degradation products generated after gamma irradiation and their origin to later on assess their potential harmfulness in single‐use containers. In this study, GC–MS is used to identify by‐products created by γ‐irradiation of primary and secondary antioxidants usually present in polyolefin‐based biotechnological single‐use materials and to confirm identification relevancy based on the literature survey or standard when available. Degradation pathways are proposed to account for the formation of by‐products identified during the study and to list intermediates and other by‐products present in too small amounts to be detected and identified accurately in all extractable studies.