New silicon source (3-glyciclyloxypropyltrimethoxysilane (GPTMS)) was used to make non-glass inorganic-organic hybrid membranes with cliethylethylammonium trifluoromethanesulfonate (([dema] [ROD by the sol-gel method. The hybrid membranes were studied with respect to their structural, thermal, proton conductivity and pores properties. The Fourier transform infrared spectroscopy (FT-IR) results showed that there was intermolecular interaction between ionic liquid and Si-O-Si skeleton structure in the inorganic-organic hybrid membranes. The thermogravimetric (TG) and differential scanning calorimetry (DSC) analysis showed that the hybrid membranes displayed good chemical stability and were thermally stable up to more than 200 degrees C in air. The N-2 adsorption test showed the hybrid membranes had good pore property and ionic liquid influenced the structure of hybrid membrane. Proton conductivity was measured from 20 degrees C to 220 degrees C and high conductivity of 1.2 x 10(-2) S/cm was obtained for a 60 wt% [dema] [TfO] doped hybrid membrane (ionogel) at 220 degrees C under anhydrous conditions. This method for the preparation of hybrid membranes is promising and may be used for the proton exchange membrane in fuel cells. (C) 2013 Elsevier B.V. All rights reserved