Surface modified Al2O3 in fluorinated polyimide/Al2O3 nanocomposites: Synthesis and characterization

Organic–inorganic hybrid materials consisting of inorganic materials and organic polymers are a new class of materials, which have received much attention in recent years. In the present investigation, at first, the surface of nano-alumina (Al 2 O 3 ) was treated with a silane coupling agent of -ami...

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Bibliographic Details
Published in:Bulletin of materials science 2012-11, Vol.35 (6), p.925-931
Main Authors: GHEZELBASH, ZIVAR, ASHOURI, DAVOUD, MOUSAVIAN, SAMAN, GHANDI, AMIR HOSSEIN, RAHNAMA, YAGHOUB
Format: Article
Language:English
Subjects:
Aluminum oxide
Aminopropyltriethoxysilane
Chemistry and Materials Science
Coupling agents
Diaminodiphenylsulfone
Electron microscopy
Emission analysis
Engineering
Field emission microscopy
Field emission spectroscopy
Fluorination
Fourier transforms
Functional groups
Glass substrates
Impact strength
Infrared analysis
Infrared spectroscopy
Inorganic materials
Materials Science
Nanocomposites
Nanoparticles
Nitrogen
Polyimide resins
Polymerization
Polymers
Scanning electron microscopy
Spectrum analysis
Stability analysis
Temperature
Thermal stability
Thermogravimetry
X ray powder diffraction
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Summary:Organic–inorganic hybrid materials consisting of inorganic materials and organic polymers are a new class of materials, which have received much attention in recent years. In the present investigation, at first, the surface of nano-alumina (Al 2 O 3 ) was treated with a silane coupling agent of -aminopropyltriethoxysilane (KH550), which introduces organic functional groups on the surface of Al 2 O 3 nanoparticles. Then fluorinated polyimide (PI) was synthesized from 4,4 ′ -(hexafluoroisopropylidene) diphthalic anhydride and 4,4 ′ -diaminodiphenylsulfone. Finally, PI/modified Al 2 O 3 nanocomposite films having 3, 5, 7 and 10% of Al 2 O 3 were successfully prepared by an in situ polymerization reaction through thermal imidization. The obtained nanocomposites were characterized by fourier transform infrared spectroscopy, thermogravimetry analysis, X-ray powder diffraction, UV-Vis spectroscopy, field emission scanning electron microscopy and transmission electron microscopy. The results show that the Al 2 O 3 nanoparticles were dispersed homogeneously in PI matrix. According to thermogravimetry analysis results, the addition of these nanoparticles improved thermal stability of the obtained hybrid materials.
ISSN:0250-4707
0973-7669
DOI:10.1007/s12034-012-0385-4