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- W3115773489 endingPage "3" @default.
- W3115773489 startingPage "3" @default.
- W3115773489 abstract "Graphene, the newest member of the carbon’s family, has proven its efficiency in improving polymers’ resistance against photodegradation, even at low loadings equal to 1 wt% or lower. This protective role involves a multitude of complementary mechanisms associated with graphene’s unique geometry and chemistry. In this review, these mechanisms, taking place during both the initiation and propagation steps of photodegradation, are discussed concerning graphene and graphene derivatives, i.e., graphene oxide (GO) and reduced graphene oxide (rGO). In particular, graphene displays important UV absorption, free radical scavenging, and quenching capabilities thanks to the abundant π-bonds and sp2 carbon sites in its hexagonal lattice structure. The free radical scavenging effect is also partially linked with functional hydroxyl groups on the surface. However, the sp2 sites remain the predominant player, which makes graphene’s antioxidant effect potentially stronger than rGO and GO. Besides, UV screening and oxygen barriers are active protective mechanisms attributed to graphene’s high surface area and 2D geometry. Moreover, the way that graphene, as a nucleating agent, can improve the photostability of polymers, have been explored as well. These include the potential effect of graphene on increasing polymer’s glass transition temperature and crystallinity." @default.
- W3115773489 created "2021-01-05" @default.
- W3115773489 creator A5002908609 @default.
- W3115773489 creator A5007169078 @default.
- W3115773489 creator A5042186544 @default.
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- W3115773489 creator A5080883458 @default.
- W3115773489 creator A5086225283 @default.
- W3115773489 date "2020-12-22" @default.
- W3115773489 modified "2023-10-01" @default.
- W3115773489 title "A Review on Graphene’s Light Stabilizing Effects for Reduced Photodegradation of Polymers" @default.
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- W3115773489 doi "https://doi.org/10.3390/cryst11010003" @default.