The synthesis of this membrane was obtained.By sol-gel process with different steps. It was.Based on the hydrolysis condensation of the.Benzyl-triethoxylane precursor in a methanol solution.Containing water and triflic acid (F3SO3H).The steps of preparation are indicated elsewhere.[] and 79 their structure is as shown in Fig. 10.The polymer was sulphonated in dichloromethane.Solvent using chlorosulfonic acid. Several copolymer.Compositions prepared from different.Proportions of the mixture, of benzyl-triethoxysilaneN-hexyltrimethoxysilane and ethoxysilane.(e.g. Different organically modified alkoxy.Silanes). Crosslinking was also performed in THF.By hydrosilylation of silane groups with divinylbenzene.Using divinyltetramethyldisiloxane platinum.Complex as catalyst.These membranes are thermally stable up to 250 ° C and have shown conductivity.Of 1.6 × 10 2 E ~ - ~ cm - ~ at room temperature.
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