MULTILAYERED TYPE HYBRID GLASS POLYPYRROLE COMPOSITE/

Multilayer organic xerogel-polypyrrole composites have been prepared b y alternate successive treatments of a glass substrate with a siloxane functionalized pyrrole, pyrrole, oxidant, and a sol precursor of the xerogel. An increase of the conductivity is seen upon the first deposi tions, but increasing the deposit numbers over three fourfold layers d oes not lead to a further improvement of the conductivity. The loss of conductivity upon aging in air of the composites is weaker than in th e case of ordinary unprotected polypyrrole. (C) 1998 Published by Else vier Science S.A. All rights reserved.