F-POSS

Cette condition s exprime en langage image de la maniere suivante localement sur F, il existe un i tel que F — F poss de une section. En particulier... 

The recent development of fluoroalkyl chains attached to POSS has led to low surface energy fluoroalkyl polyhedral oligomeric silsesquioxanes (F-POSS) (Figure 23.1) [15-18], These robust nanoflllers are used for low surface energy applications. 

FIGURE 23.1 F-POSS general structure with a typical Tg core. 

TABLE 23.2 Melting Points and MW Data for F-POSS Compounds... 

F-POSS type Melting point (°C) Molecular weight (g/mol) Reference... 

FIGURE 23.9 Duck feather coated with F-POSS (4) with a lapeseed oil droplet (y, = 35.7 mN/m) colored with oil red O (left). Droplet of octane (y, = 21.7 mN/m) on a lotus leaf coated with 4 (center). Droplets of water (y, = 72.1 mN/m), methylene iodine (y, = 50.1 mN/m), methanol (yj = 22.7 mN/m), and octane (y, =21.7 mN/m) on a lotus leaf coated with PMMA and F-POSS (44% wt.) elecirospun fibers, indicating the presence of microscopic pockets of air and the formation of a composite interface. Reproduced with permission from Reference 15. Copyright 2008. 

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