Fullerene C60 as an antioxidant for polymers

Radical scavenging efficiency of different fullerenes C60–C70 and fullerene soot

“…In our earlier studies we have shown that the fullerenes C 60 and C 70 intervene in the initiation stage of the model oxidation and compete with very rapid formation of peroxy radicals from alkyl radicals according to the following scheme [34,35]:…”

“…The stabilizing activity of fullerenes C 60 , C 60 / C 70 and C 70 , has been shown to be comparable to the activity of well-known hindered phenolic stabilizers, by means of model reactions of cumene and styrene initiated oxidation as well as in accelerated tests of polystyrene (PS) and polydimethylsiloxane (PDMS) rubber with fullerene moieties [34,35]. The stabilizing effect of fullerenes C 60 and C 70 was also shown in the thermal and thermo-oxidative degradation of poly(2,6-dimethyl-1,4-phenylene oxide) and its blends [36], natural rubber (cis-1,4-polyisoprene) and synthetic cis-1,4-polyisoprene [37], isotactic polypropylene [38], poly(methyl methacrylate) (PMMA) [39][40][41][42][43][44], poly(n-alkyl acrylate)s [45], and polyamide 6 [46].…”

Functionalisation of nylon with carbon nanotubes to make thermally stable fabric and wearable capacitor

“…5 Based on the data above presented, it is clear that the presence of nanotubes on nylon retards its thermal oxidation. It is reported that the oxidative degradation of polymer usually involves free radical chain reactions and the introduction of radical inhibitor/scavenger can improve the antioxidative properties of polymer effectively [6,16]. Distinguishable D-band and G' band can be observed in the Raman spectra of nanotubes used in this study (see Fig.…”

Synthesis and Antioxidant Activity of [60]Fullerene–BHT Conjugates

“…[41] Although these compounds behave as moderately efficient antioxidants under aerobic conditions, an additional radical-scavenging mode, that is, efficient trapping of alkyl radicals, is expected to be contributed by the C 60 group under hypoxic conditions, and this would make these phenolic C 60 derivatives interesting bimodal radical scavengers that could find interesting applications in pharmaceuticals and polymer chemistry (e.g., as polymerization inhibitors and antioxidants). [42] In these areas the bulky C 60 unit could also contribute additional properties to these adducts, for example, limited mobility or preferential location in some biological compartment.…”