Surface modification of polyaniline using tetraethyl orthosilicate.
A well-dispersible conducting polyaniline/silica hybrid is prepared by the hydrolysis and condensation of tetraethyl orthosilicate (TEOS) on the surface of polyaniline in water/ethanol solution. It provides a simple and environmentally sound route for preparing the processable conducting polyaniline/silica hybrid at the nanometre level. The conductivity of polyaniline/silica hybrid is 2.43 S cm(-1) at 25 degrees C, and its powder is easily dispersed in the anhydrous ethanol or aqueous solution without any stabilizer. In addition, the structure, morphology and cyclic voltammorgram of this hybrid are also reported.
Li
Xingwei
X
School of Material Science and Engineering, East China University of Science and Technology, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai 200237, PR China. lixingwei_nj@yahoo.com
Dai
Na
N
Pan
Shirong
S
Wang
Gengchao
G