Learning from mother nature:exploiting a biological antioxidant for the melt stabilisation of polymers

Al-Malaika, Sahar (2001). Learning from mother nature:exploiting a biological antioxidant for the melt stabilisation of polymers. Macromolecular Symposia, 176 (1), pp. 107-117.

Abstract

An overview of the antioxidant role of the biologically active form of vitamin E, α-tocopherol, in polyolefins is discussed. The effect of the vitamin antioxidant on the melt and colour stability of polyethylene (PE) and polypropylene (PP) is highlighted. It is shown that tocopherol is a highly effective antioxidant that results in superior melt stabilisation of polyolefins particularly when used at much lower concentration than that needed for conventional synthetic hindered phenol processing stabilisers. As with other hindered phenols,α-tocopherol imparts also some colour to the polymer but this is shown to be reduced drastically in the presence of other antioxidants, such as phosphites, or other additives, such as polyhydric alcohols.

Publication DOI: https://doi.org/10.1002/1521-3900(200112)176:1<107::AID-MASY107>3.0.CO;2-1
Divisions: Engineering & Applied Sciences > Chemical engineering & applied chemistry
Engineering & Applied Sciences > Polymer and advanced materials research group
Additional Information: Copyright 2008 Elsevier B.V., All rights reserved.
Uncontrolled Keywords: alpha tocopherol,antioxidant,free radical,autooxidation,food preservation,lipid peroxidation
Full Text Link: http://onlineli ... CO;2-1/abstract
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2001-12-05
Authors: Al-Malaika, Sahar ( 0000-0002-1378-0603)

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