azo group

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Noun1.azo group - the bivalent group -N=N- united to two hydrocarbon groups
chemical group, radical, group - (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
References in periodicals archive ?
In the prior works attempt insertion of azo group in phenol novolac resin at a molecular level has recently been shown to impart improvements in thermal properties, mechanical properties, flame retardance, and char yields in cured epoxy resins [23, 24].
This may be due to the production of the subsequent weak acidic intermediates as a result of degradation and cleavage of the azo group in the dye molecules [11].
Alizarin yellow GG (AYGG) [5-(3-nitrophenylazo)-2-hydroxybenzoic acid sodium salt], with one azo group, has a formula of [C.