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Characterization and conductivity studies of nanocomposite films with polymer networks containing polyaniline‐alginate/titanium dioxide
Author(s) -
Basavaraja C.,
Kim Na Ri,
Jo Eun Ae,
Huh Do Sung
Publication year - 2010
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.20966
Subject(s) - polyaniline , materials science , nanocomposite , titanium dioxide , scanning electron microscope , fourier transform infrared spectroscopy , polymer , polyaniline nanofibers , conductive polymer , composite material , conductivity , chemical engineering , composite number , transmission electron microscopy , nanotechnology , chemistry , polymerization , engineering
Polyaniline nanocomposite films were chemically synthesized in the presence of alginate template by varying the concentration of TiO 2 in the composites. Characterization of the composite samples by FTIR, UV‐Vis spectra (UV), and X‐ray diffraction (XRD) indicates the formation of polyaniline‐alginate/titanium dioxide (PAT) composites. The morphology analysis by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) also supports the formation of the composites. Temperature‐dependent DC conductivity of the polyaniline‐alginate (PA) and PAT composites was studied in the range of 300 ≤ T ≤ 500 K. UV‐Vis and FTIR spectral studies reveal that the alginate is a good template for the chemical interaction between polyaniline and TiO 2 , which suggests that the micelles formed by the anilinium‐alginate cations containing TiO 2 are responsible for the transport properties of the PAT composites. POLYM. COMPOS., 31:1754–1761, 2010. © 2010 Society of Plastics Engineers.