In this work cross-linked hybrid organic-inorganic membranes consisting of polymeric matrix functionalized with sulfonic groups and uniformly distributed silica domains have been successfully synthesized through in situ polymerization strategy via photo-initiated copolymerization of acrylic monomers (acrylonitrile AN, acrylamide AAm, 3-sulfopropyl acrylate potassium salt SPAK) and simultaneous formation of silica counterpart using TEOS-based sol-gel system. N,N′-methylenebis(acrylamide) (MBA) was used as a cross-linker. The ratio between monomers was maintained stable, whereas the amount of added sol-gel system was varied. The influence of inorganic component content on properties of hybrid polymer-inorganic membranes was investigated. Chemical composition, thermal properties, structure and morphology of the obtained hybrid membranes were investigated by ATR-FTIR, TGA, DSC, SEM and EFTEM. Proton conductivity of the synthesized membranes was high (7.6 to 13.5 mS/cm) and increases with an increase of silica content. The prepared membranes were thermally stable up to 90 °C, and exhibited proton conductivity and swelling coefficients sufficient for possible use as proton-conducting membranes.

在这项工作中，已成功地通过丙烯酸单体（丙烯腈AN，丙烯酰胺AAm，3-使用基于TEOS的溶胶-凝胶系统同时形成二氧化硅对应物。N，N'-亚甲基双（丙烯酰胺）（MBA）被用作交联剂。单体之间的比例保持稳定，而溶胶-凝胶体系的添加量却变化。研究了无机组分含量对杂化聚合物-无机膜性能的影响。通过ATR-FTIR，TGA，DSC，SEM和EFTEM研究了所得杂化膜的化学组成，热性能，结构和形貌。合成膜的质子电导率很高（7.6至13.5 mS / cm），并且随着二氧化硅含量的增加而增加。所制备的膜在高达90°C的温度下具有热稳定性，并表现出足够的质子传导性和溶胀系数，足以用作质子传导膜。