1.
J Am Chem Soc
; 128(51): 16432-3, 2006 Dec 27.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17177355
RESUMO
A new class of thermally activated chain-breaking antioxidants is presented. Dimers of persistent carbon-centered radicals are able to inhibit the autoxidation of cumene and styrene with better rate constants than the commercial antioxidant Irganox HP-136 and 3,5-di-tert-butyl-4-hydroxyanisole. A dramatic increase in antioxidant activity is observed with increasing temperature as more dimers dissociate to their corresponding persistent radicals.