Preparation of nanoparticle–polymer composite with plasma treatment

• Published in: Surface & coatings technology Vol. 205; pp. S271 - S274
• Main Authors: Hong, Yong C., Lee, Shin W., Kwon, O-Pil, Lee, Suck H., Uhm, Han S.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 25.12.2010; Elsevier
• Subjects: Composite; Conductivity; Cross-disciplinary physics: materials science; rheology; Dispersions; Exact sciences and technology; Materials science; Nanocomposites; Nanomaterials; Nanoparticle; Nanoparticles; Nanostructure; Physics; Plasma functionalization; Polyanilines; Polymer; Polymerization; Solvents; Surface treatments; Titanium dioxide; Conductivity; Polymer; Plasma functionalization; Composite; Nanoparticle; Nanoparticles; Plasma; Composite materials; Surface treatments; Polymers
• ISSN: 0257-8972; 1879-3347
• DOI: 10.1016/j.surfcoat.2010.08.007

Titanium dioxide as inorganic nanoparticles and emeraldine based (EB) polyaniline (PANI) as polymer are used in preparation of a nanoparticle–polymer composite. The polyaniline was prepared by a temperature-controlled self-stabilized dispersion polymerization method. The nanoparticles were plasma-treated in N 2/SO 2 at a low pressure to improve dispersion in solvent and to sulfonate them. The plasma-treated nanoparticle, PANI, and a solvent were introduced into a reaction vessel. The mixtures were changed from heavy blue to green after stirring for 3 h. The characteristic peaks of the obtained composite in the UV–visible spectrum appeared at 325–360, 400–430, and 780–826 nm, which correspond to π–π*, polaron–π*, and π–polaron transitions, respectively. The results mean that PANI in the composite is in the doped state. The plasma-treated TiO 2 and the composite were preliminarily characterized by X-ray photoelectron spectroscopy, Fourier transform infrared, and transmission electron microscopy.