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Synthesis and characterization of polyimide-based hybrid thin films from a novel colloidal core-shell nanocomposite particles.
J Nanosci Nanotechnol ; 10(8): 5359-63, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21125898
ABSTRACT
In this study, poly(4,4-(hexafluoroisopropylidenediphthalic anhydride)-co-oxydianiline) (6FDA-ODA) and a novel core-shell nanoparticle consisting of a core (SnO2/TiO2) and a shell (ZrO2/Sb2O3) with the composition (SnO2TiO2ZrO2Sb2O3 = 18534) were used to prepare polyimide/nanoparticles hybrid thin films. The resultant hybrid thin films were investigated by FTIR, TGA, DSC, TEM, SEM, AFM, alpha-step, UV-Vis, and n&k analyses. The results show that the prepared hybrid thin films had a good thermal stability. The size of nanoparticles was effectively controlled in the range of 8-10 nm in the hybrid thin films. These nanoparticles were evenly distributed across the hybrid thin films and no phase separation occurred. In terms of the optical properties, the prepared hybrid thin films had good transparency in the range of visible light. The cutoff wavelength had a blue shift as the content of the nanoparticles increased. The refractive index of prepared hybrid thin films increased with corresponding increases in nanoparticle content. Moreover, the prepared polyimide/core-shell nanoparticle hybrid thin films displayed excellent film formability and planarity.

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Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Revista: J Nanosci Nanotechnol Ano de publicação: 2010 Tipo de documento: Artigo País de afiliação: Taiwan