Issue 4, 2017, Issue in Progress
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RSC Advances

Scavenging ability of dendritic PAMAM bridged hindered phenolic antioxidants towards DPPH˙ and ROO˙ free radicals

Cuiqin Li, ORCID logo a   Peng Sun,a   Hongyang Yu,a   Na Zhanga  and  Jun Wang*a  

* Corresponding authors

a Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, China
E-mail: dqpilicuiqin@126.com
Fax: +86 0459 6504224
Tel: +86 0459 6504224

Abstract

Antioxidant activities of first generation and the second generation dendritic antioxidants (1.0G and 2.0G dendritic antioxidants) with a hindered phenolic group and a tertiary amine group at the same molecule were evaluated using the DPPH˙ method and the oxygen uptake method. It was found that two dendritic antioxidants had good scavenging abilities on DPPH˙ and ROO˙ free radicals and their scavenging abilities were superior to Irganox 3114 with only hindered phenol groups. The antioxidant abilities of dendritic skeletons which only contained the tertiary amine groups were evaluated and they might scavenge DPPH˙ and ROO˙ free radical. The results of dendritic skeletons showed that dendritic antioxidants were the intramolecular complex primary antioxidants with hindered phenolic group and tertiary amine group, and they have good synergistic effect.

Graphical abstract: Scavenging ability of dendritic PAMAM bridged hindered phenolic antioxidants towards DPPH˙ and ROO˙ free radicals

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Article information

DOI
https://doi.org/10.1039/C6RA26134E
Article type
Paper
Submitted
01 Nov 2016
Accepted
08 Dec 2016
First published
12 Jan 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 1869-1876

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Scavenging ability of dendritic PAMAM bridged hindered phenolic antioxidants towards DPPH˙ and ROO˙ free radicals

C. Li, P. Sun, H. Yu, N. Zhang and J. Wang, RSC Adv., 2017, 7, 1869 DOI: 10.1039/C6RA26134E

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