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A new type of sulfonated clay (clay-SO 3 H) was prepared by the ion exchange method with the sulfanilic acid as the surfactant agent. The grafted amount of sulfanilic acid in clay-SO 3 H was 51.8mequiv. (100g) −1 , which was measured by thermogravimetric analysis (TGA). Sulfonated poly(ether ether ketone) (SPEEK)/clay-SO 3 H hybrid membranes which composed of SPEEK...
In the present work, the acid–base composite membranes were prepared using highly sulfonated poly(aryl ether ether ketone) (SPEEK) and polybenzimidazole (PBI). The morphology characteristics of composite membranes with different content of PBI were studied in detail by SEM, AFM, SAXS, FT-IR and UV. The results show that the structures of composite membrane become more compact than that of SPEEK, due...
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