Sulfonated poly silica hybrid membranes

D. S. Kim, H. S. Kwang, H. B. Park, Y. M. Lee, Preparation and characterization of sulfonated poly(phtheilazinone ether sulfone ketone)/silica hybrid membranes for DMFC applications. Macrotnol. Res. 12, 413-421 (2004). 

Kim DS, Shin KH, Park HB, Lee YM (2004) Preparation and characterization of sulfonated poly(phthalazinone ether sulfone ketone) (SPPESK)/silica hybrid membranes for direct methanol fuel cell applications. Macromol Res 12 413-421... 

M. Baias, D.E. Demco, I. Colicchio, B. Blumich, M. MbUer, Proton exchange in hybrid sulfonated poly(ether ether ketone)-silica membranes by H solid-state NMR, Chem. Phys. Lett. 456 (2008) 227-230. 

The state of water in fully hydrated sulfonated poly(ether ether ketone)-silica hybrid proton exchange membranes were characterized in terms of the exchange rate between bound and free water, the water dynamics in each phase, and the relative water populations by H ODESSA and transverse magnetization relaxation NMR. The exchange rate, the amount of bound water, and the reorientation of free water molecules increase in the presence of silica particles. ... 

D. S. Kim, B. Liu, M. D. Guiver, Influence of silica content in sulfonated poly(arylene ether ether ketone ketone)(SPAEEKK) hybrid membranes on properties for fuel ceU application. Polymer 47, 7871-7880 (2006). 

Tsai et al. prepared sulfonated poly(arylene ether sulfone) and combined it with a silica sol to obtain composite membranes. At 80 °C, the hybrid membranes yielded single-cell power densities between 11 and 13mWcm in a DMFC, exceeding the power density of Nation 117 [59]. 

Cho EB, Kim H, Kim D (2009) Effect of morphology and pore size of sulfonated mesoporous benzene-silicas in the preparation of poly(vinyl alcohol)-based hybrid nanocomposite membranes for direct methanol fuel cell application. J Phys Chem B 113 9770-9778... 

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