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Hybrid polyaniline–TiO 2 nanocomposite Langmuir–Blodgett thin films: Self‐assembly and their characterization
Author(s) -
Bhullar Gurpreet Kaur,
Kaur Ramneek,
Raina K. K.
Publication year - 2015
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.41386
Subject(s) - nanocomposite , materials science , polyaniline , monolayer , chemical engineering , anatase , fourier transform infrared spectroscopy , langmuir–blodgett film , polymerization , composite material , polymer , nanotechnology , organic chemistry , photocatalysis , chemistry , engineering , catalysis
Polyaniline (PANi)–titanium dioxide (TiO 2 ) nanocomposite materials were prepared by chemical polymerization of aniline doped with TiO 2 nanoparticles. Surface pressure–area (π‐ A ) isotherms of these nanocomposites show phase transformations in the monolayer during compression process. Multiple isotherms indicate that the monolayer of the nanocomposite material can retain its configuration during compression‐expansion cycles. Langmuir–Blodgett thin films of PANi–TiO 2 nanocomposite were deposited on the quartz and indium tin oxide coated conducting glass substrates. Fourier transfer infrared spectroscopy and UV–visible spectroscopy study indicates the presence of TiO 2 in PANi, whereas X‐ray Diffraction study confirmed the anatase phase of TiO 2 and particle size (∼nm) of PANi–TiO 2 . The morphology of Langmuir–Blodgett films of these nanocomposites was also characterized by atomic force microscopy. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41386.