Poly(vinylidene fluoride-co-hexafluoropropylene) (Mw ~400,000) is purchased from Sigma Aldrich. Succinonitrile (SN), N, N-Dimethylformamide (DMF), lithium trifluoromethanesulfonate (LiOTF), Zinc trifluoromethanesulfonate (Zn(OTF)2), Methyl acrylate (MA) and 2,2’-Azobis(2-methylpropionitrile) (AIBN) are purchased from Aladdin. MA was vacuum-distilled to remove the inhibitor. AIBN was recrystallized before use. Methacryl polyhedral oligomeric silsesquioxane cage mixture (POSS) was purchased from Forsman.
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