文献类型：期刊文献

英文题名：Surface modification of nano-SiO₂ particles using polyaniline

作者：Li, XW; Wang, GC; Li, XX

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[2]Nanjing Univ Sci & Technol, Dept Chem, Nanjing 210094, Peoples R China

年份：2005

卷号：197

期号：1

起止页码：56

外文期刊名：SURFACE & COATINGS TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000229513700008)】；

语种：英文

外文关键词：polyaniline; silicon oxides; conductivity; interface

摘要：An electrical conducting polyaniline/nano-SiO2 composite was obtained by surface modification of nano-SiO2 particles using polyaniline, and was characterized via Fourier transform infrared (FTIR) spectra, UV-vis absorption spectra, wide-angle X-ray diffraction (WXRD), thermogravimetric analysis (TGA), and transmission electron microscopy (TEM), as well as conductivity. Surface area, total pore volume, and pore size distribution of both nano-SiO2 particles and polyaniline/nano-SiO2 composite particles were also measured. The results of spectroanalysis show that the composite is not a simple blend of polyaniline with nano-SiO2 particles. An interaction exists at the interface of nano-SiO2 particles and polyaniline macromolecule. Polyaniline/nano-SiO2 composite contains 15% conducting polyaniline by mass, with a conductivity of 0.32 S cm(-1) at 25 degrees C. The dimension of polyaniline/nano-SiO2 composite particles is about 20-30 nm. (c) 2004 Published by Elsevier B.V.