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Sulfonated-silica/Nafion ® composite membranes were prepared in a sol–gel reaction of (3-Mercaptopropyl)trimethoxysilane (SH-silane) followed by solution casting, and then oxidated using 10wt% H 2 O 2 solution. The chemical and physical properties of the composite membranes were characterized by using FT-IR, XPS, 29 Si NMR and SEM analyses. Experimental results indicated...
Various spatially enlarged organoclays were prepared by using poly(oxyproplene)-backboned quaternary ammonium salts of various molecular weights M w 230, 400 and 2000 as the intercalating agents for Na + -montmorillonite. The modified MMT was utilized to improve the compatibility with Nafion ® . Sufficient interaction of the modified MMT with Nafion ® was studied by...
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