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Chemical anchoring of silica nanoparticles onto polyaniline chains via electro-co-polymerization of aniline and N-substituted aniline grafted on surfaces of SiO2
- Source :
-
Electrochimica Acta . May2008, Vol. 53 Issue 14, p4693-4698. 6p. - Publication Year :
- 2008
-
Abstract
- Abstract: Chemical anchoring of silica nanoparticles onto polyaniline (PANI) chains was conducted through electro-co-polymerization of aniline and N-substituted aniline grafted on surfaces of silica nanoparticles. The grafting of N-substituted aniline on surfaces of silica nanoparticles were realized through hydrolysis of triethoxysilylmethyl N-substituted aniline (ND42) and the following condensation reaction with silanol groups on surfaces of SiO2. Organic–inorganic interactions between PANI and SiO2 involved in electro-co-polymerization process pushed the polymer chains apart and so facilitated the 1D growth of the polymer. Hence, the obtained hybrid film PANI/ND42–SiO2 displayed nano-fibrous morphologies (ca. 50nm in diameter). Consequently, PANI/ND42–SiO2 exhibited an average specific capacitance of 380Fg−1, ca. 40% higher than that of PANI/SiO2 (276Fg−1). The hybrid film also showed improved cyclic stability. [Copyright &y& Elsevier]
- Subjects :
- *POLYMERIZATION
*ANILINE
*SURFACES (Technology)
*NANOPARTICLES
Subjects
Details
- Language :
- English
- ISSN :
- 00134686
- Volume :
- 53
- Issue :
- 14
- Database :
- Academic Search Index
- Journal :
- Electrochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 31492380
- Full Text :
- https://doi.org/10.1016/j.electacta.2008.01.064