Synthesis, characterisation, and performance evaluation of tri-armed phenolic antioxidants

Higgins, C. L., Filip, S. V., Afsar, A. and Hayes, W. ORCID: https://orcid.org/0000-0003-0047-2991 (2020) Synthesis, characterisation, and performance evaluation of tri-armed phenolic antioxidants. Tetrahedron Letters, 61 (28). 152127. ISSN 0040-4039 doi: 10.1016/j.tetlet.2020.152127

Abstract/Summary

In this study, a series of core units (glycerol, triethanolamine and triisopropanolamine derivatives) were investigated for their use in tri-armed phenolic antioxidants. The antioxidant ability of these tri-armed phenolic compounds featuring different core units were then evaluated in a hydrocarbon lubricant using differential scanning calorimetry (DSC) and compared to the commercially available antioxidants Irganox L135 and Irganox L57. An impressive oxidation induction time of ca. 9-12 minutes was observed for the glycerol based antioxidants when compared to the commercial antioxidants (ca. 4-6 minutes), whereas in contrast in the case of triethanolamine and triisopropanolamine derived antioxidants, a solubilising unit was incorporated in order to provide appropriate solubility within the hydrocarbon medium and revealed an excellent oxidation induction time of ca. 11-12 minutes.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/91194
Identification Number/DOI	10.1016/j.tetlet.2020.152127
Refereed	Yes
Divisions	Interdisciplinary centres and themes > Chemical Analysis Facility (CAF) Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
Publisher	Elsevier
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