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Synthesis and characterization of polypyrrole‐au coated SiO 2 @poly(4‐vinylpyridine) composites
Author(s) -
Lu Linchao,
Wang Wenqin,
Cai Wujin,
Chen ZhongRen
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.38636
Subject(s) - materials science , transmission electron microscopy , x ray photoelectron spectroscopy , raman spectroscopy , polypyrrole , scanning electron microscope , polymerization , monomer , composite material , nanoparticle , polymer chemistry , chemical engineering , nanotechnology , polymer , physics , engineering , optics
Abstract Microspheres with silica as core and poly(4‐vinylpyridine) (P4VP) as shell were synthesized. AuCl 4 −ions were bound by P4VP chains to form the complex, which acted both as an oxidant of pyrrole monomers and as a source of Au atoms. By vapor phase polymerization, the PPy and Au nanoparticles were simultaneously formed on the surfaces of SiO 2 @P4VP microspheres. The core‐shell structure was confirmed by transmission electron microscopy. The surface morphologies of the composites were observed by scanning electron microscopy. The molecular structures of composites were characterized in detail by Raman spectra, X‐ray diffraction, and X‐ray photoelectron spectroscopy. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013