Antioxidant effectiveness of vitamin E in HDPE and tetradecane at 32°C

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DOIResolve DOI: http://doi.org/10.1016/S0141-3910(01)00087-8
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TypeArticle
Journal titlePolymer Degradation and Stability
Volume73
Issue2
Pages269280; # of pages: 12
SubjectHDPE oxidation; Tetradecane oxidation; Vitamin E antioxidant; Gamma initiation
AbstractVitamin E was found to be a very effective antioxidant both in a model, liquid alkane, (teradecane) and in HDPE when oxidations at close to room temperature were initiated with γ-radiation. FTIR was used to follow changes in vitamin E in oxidising tetradecane and HDPE, even at very low concentrations of the antioxidant. Formation of isolated hydroperoxide groups as a direct result of the vitamin E–peroxyl radical reaction were clearly visible. Quinone products from vitamin E were formed during γ-irradiation, but different quinones were formed depending on the vitamin E concentrations. Vitamin E quite effectively retarded the oxidation of HDPE during γ-irradiation and so should be useful in polyethylene intended for radiation sterilisation, as packaging materials or medical devices.
Publication date
LanguageEnglish
AffiliationNRC Institute for Chemical Process and Environmental Technology; National Research Council Canada
Peer reviewedNo
NPARC number13102758
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Record identifier171c16d6-6245-4d31-83c2-952fd030a506
Record created2009-12-14
Record modified2016-05-09
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