Microstructure and interfacial interaction of polyimide/silica hybrid nanocomposites prepared with 3-aminopropyltriethoxysilane

Mohammad A Wahab; C S Ha

doi:10.1163/156855403771953704

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Microstructure and interfacial interaction of polyimide/silica hybrid nanocomposites prepared with 3-aminopropyltriethoxysilane

Journal article

Peer reviewed

Microstructure and interfacial interaction of polyimide/silica hybrid nanocomposites prepared with 3-aminopropyltriethoxysilane

Mohammad A Wahab and C S Ha

Composite Interfaces, Vol.10(4-5), pp.475-488

2003

DOI: https://doi.org/10.1163/156855403771953704

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Abstract

hybrid nanocomposites

polyimide/silica

thermal properties

optical behavior

3-aminopropyltriethoxysilane

interfacial interaction

A series of polyimide (PI)-silica hybrid nanocomposites are prepared from 3,3â€²,4,4â€²biphenyltetracarboxylic dianhydride (BPDA)-4,4â€²-oxydianiline (ODA) polyamic acid (PAA) and tetraethoxysilane(TEOS) or tetramethoxysilane (TMOS) by the sol-gel process. 3-Aminopropyltriethoxysilane (3-APS) is used to enhance the interfacial interaction between polyimide and silica. The morphology, interfacial interaction, and properties of the hybrids are investigated using scanning electron microscope (SEM), UV-vis spectroscopy, atomic force microscope (AFM), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). SEM and AFM images indicate that silica particles of ca. 45-55 nm size are uniformly distributed in polyimide matrices and that the interfacial interaction between PI and TEOS is better than that between PI and TMOS. The optical transparencies of the PI/TEOS hybrids are better than that of the PI/TMOS hybrids. FTIR spectra confirm the Si O Si bond as well as the conversion of PAA to polyimide and PI/silica hybrid films. The thermal stability is increased after incorporation of the silicas in the polyimide matrix. © 2003 VSP.

Details

Title: Microstructure and interfacial interaction of polyimide/silica hybrid nanocomposites prepared with 3-aminopropyltriethoxysilane
Authors: Mohammad A Wahab (Author) - Pusan National University, South Korea
C S Ha (Author) - Pusan National University, South Korea
Publication details: Composite Interfaces, Vol.10(4-5), pp.475-488
Publisher: V S P
Date published: 2003
DOI: 10.1163/156855403771953704
ISSN: 0927-6440
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99450442702621
Output Type: Journal article

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Web Of Science research areas: Materials Science, Composites