Novel anion-exchange organic-inorganic hybrid membranes prepared through sol-gel reaction and UV/thermal curing

Anion-exchange organic-inorganic hybrid membranes were prepared through sol-gel reaction and UV/thermal curing of positively charged alkoxysilane and the alkoxysilane containing acrylate or epoxy groups. Properties of prepared hybrid membranes were varied by control of the molar ratio of the precursors. It was shown that the thermal degradation temperatures (Td) of the membranes were in the range of 212–226°C, water uptakes in the range of 9.6–14.6% and IEC values in the range of 0.9–1.6 mmol g−1. The hybrid membranes show high permeability to anions, as reflected by the high static transport number (t−) of the anion (Cl−). © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2008

[1]  A. Walcarius,et al.  Electrochemical evaluation of polysiloxane-immobilized amine ligands for the accumulation of copper(II) species , 1999 .

[2]  X. Tong-wen,et al.  A novel positively charged composite membranes for nanofiltration prepared from poly(2,6-dimethyl-1,4-phenylene oxide) by in situ amines crosslinking , 2003 .

[3]  Zhen-Liang Xu,et al.  Poly(vinyl chloride) (PVC) hollow fiber ultrafiltration membranes prepared from PVC/additives/solvent , 2002 .

[4]  T. Xu,et al.  Fundamental studies of a new hybrid (inorganic–organic) positively charged membrane. II. Membrane preparation via alcoholysis reaction and amination processes of silicone and titanate coupling agents , 2005 .

[5]  Alain Walcarius,et al.  Electrochemical Applications of Silica-Based Organic−Inorganic Hybrid Materials , 2001 .

[6]  Wenfang Shi,et al.  Preparation and properties of proton conducting organic-inorganic hybrid membranes based on hyperbranched aliphatic polyester and phosphoric acid , 2004 .

[7]  G. Kickelbick,et al.  Concepts for the incorporation of inorganic building blocks into organic polymers on a nanoscale , 2003 .

[8]  Tongwen Xu,et al.  A new inorganic-organic negatively charged membrane: membrane preparation and characterizations , 2003 .

[9]  Runhong Du,et al.  Positively charged composite nanofiltration membrane prepared by Poly(N, N-dimethylaminoethyl methacrylate)/polysulfone , 2004 .

[10]  C. W. Lin,et al.  Proton conducting membranes based on PEG/SiO2 nanocomposites for direct methanol fuel cells , 2003 .

[11]  R K Nagarale,et al.  Recent developments on ion-exchange membranes and electro-membrane processes. , 2006, Advances in colloid and interface science.

[12]  Laurent Depre,et al.  Proton conducting sulfon:sulfonamide functionalized materials based on inorganic-organic matrices , 2000 .

[13]  T. Sata,et al.  Studies on anion exchange membranes having permselectivity for specific anions in electrodialysis — effect of hydrophilicity of anion exchange membranes on permselectivity of anions , 2000 .

[14]  R. Slade,et al.  Prospects for Alkaline Anion‐Exchange Membranes in Low Temperature Fuel Cells , 2005 .

[15]  P. Gómez‐Romero.  Hybrid Organic–Inorganic Materials—In Search of Synergic Activity , 2001 .

[16]  Tongwen Xu,et al.  Synthesis and characterizations of new negatively charged organic¿inorganic hybrid materials: Part II. Membrane preparation and characterizations , 2005 .

[17]  G. Gohil,et al.  Preparation of organic-inorganic composite anion-exchange membranes via aqueous dispersion polymerization and their characterization. , 2005, Journal of colloid and interface science.

[18]  L. Chau,et al.  Anion-Exchange Material with pH-Switchable Surface Charge Prepared by Sol−Gel Processing of an Organofunctional Silicon Alkoxide , 2001 .

[19]  X. Tong-wen,et al.  Fundamental studies on a new series of anion exchange membranes: effect of simultaneous amination-crosslinking processes on membranes ion-exchange capacity and dimensional stability , 2002 .

[20]  T. Xu,et al.  New anion exchanger organic–inorganic hybrid materials and membranes from a copolymerof glycidylmethacrylate and γ‐methacryloxypropyl trimethoxy silane , 2006 .

[21]  T. Xu,et al.  Fundamental studies of a new series of anion exchange membranes: Membranes prepared from bromomethylated poly(2,6-dimethyl-1,4-phenylene oxide) (BPPO) and pyridine , 2006 .

[22]  Garth L. Wilkes,et al.  Organic/Inorganic Hybrid Network Materials by the Sol−Gel Approach , 1996 .

[23]  T. Xu.  Ion exchange membranes: State of their development and perspective , 2005 .

[24]  K. Miyatake,et al.  Preparation of the electrode for high temperature PEFCs using novel polymer electrolytes based on organic/inorganic nanohybrids , 2004 .