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Poly(9‐vinylcarbazole)/silver composite nanotubes and networks formed at the air–water interface
Author(s) -
Wang ChangWei,
Xin GuoQing,
Lee YongIll,
Hao Jingcheng,
Jiang Jianzhuang,
Liu HongGuo
Publication year - 2009
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.31443
Subject(s) - materials science , composite number , nanometre , nanoparticle , aqueous solution , nanocomposite , polymer , silver nanoparticle , chemical engineering , carbon nanotube , doping , nanotechnology , composite material , chemistry , optoelectronics , engineering
Abstract Silver‐nanoparticle‐doped poly(9‐vinylcarbazole) (PVK) nanocomposites were prepared via the reduction of Ag + ions and the self‐assembly of PVK on AgNO 3 aqueous solution surfaces. The formed composite nanostructures depended strongly on the experimental temperature. Thick round disks of PVK surrounded by discrete Ag nanoparticles and/or with irregular holes formed at room temperature; nanotubes and micronetworks doped with Ag nanoparticles formed at about 30–40°C, and networks formed at higher temperature. Further investigation revealed that the nanotubes were transformed from thin round disks. The length of the PVK/Ag composite nanotubes were longer than 10 μm, and the average size of the embedded Ag nanoparticles was found to be about 3.5 nm. The composite networks were composed of round pores with diameters of several hundred nanometers and fine silver nanoparticles embedded in the thin polymer films that covered the pores. The formation of the nanotubes was a very interesting self‐assembly phenomenon of the polymer at the air–water interface that has not been reported before. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010