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Synthesis of novel silica-polyimide nanocomposite films using aromatic-amino modified silica nanoparticles: Mechanical, thermal and morphological investigations
Author(s) -
Ravindra V. Ghorpade,
C. R. Rajan,
Nayaku Chavan,
S. Ponrathnam
Publication year - 2015
Publication title -
express polymer letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.695
H-Index - 72
ISSN - 1788-618X
DOI - 10.3144/expresspolymlett.2015.44
Subject(s) - polyimide , materials science , nanocomposite , thermal stability , fourier transform infrared spectroscopy , thermal decomposition , composite number , nanoparticle , polymer , chemical engineering , composite material , organic chemistry , nanotechnology , layer (electronics) , chemistry , engineering
Silica nanoparticles were modified with aromatic amino groups and modified-silica/polyimide composite films were prepared using them. 3,3',4,4'-Benzophenone tetracarboxylic dianhydride (BTDA) and 4,4'-oxydianiline (ODA) were used as precursors for polyimide matrix. The structures of the modified nanoparticles and hybrid nanocomposites were identified using Fourier Transform Infrared (FTIR) spectrometry. The hybrid composite films were evaluated for mechanical, thermal and morphological characteristics. Morphological results describe a uniform dispersion of silica particles in the polymer matrix. The thermal stability and mechanical properties of polyimide composite were improved, and the decomposition temperature was increased when the amount of silica nanoparticles was increased

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