Microstructure and properties of polyimide/poly(vinylsilsesquioxane) hybrid composite films

Mohammad A Wahab; I Kim; C S Ha

doi:10.1016/S0032-3861(03)00429-4

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Microstructure and properties of polyimide/poly(vinylsilsesquioxane) hybrid composite films

Journal article

Peer reviewed

Microstructure and properties of polyimide/poly(vinylsilsesquioxane) hybrid composite films

Mohammad A Wahab, I Kim and C S Ha

Polymer, Vol.44(16), pp.4705-4713

2003

DOI: https://doi.org/10.1016/S0032-3861(03)00429-4

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Abstract

low dielectric constant

polyimide/silica hybrid composites

silsesquioxane

Polyimide (PI)/poly(vinylsilsesquioxane) (PVSSQ) (PI/PVSSQ) hybrid composite films were prepared from 3,3â€²,4,4â€²- biphenyltetracarboxylic dianhydride (BPDA)-4,4â€²-oxydianiline (ODA) polyamic acid and triethoxyvinylsilane (TEVS or VSSQ) via sol-gel process and thermal imidization. The presence of the PVSSQ showed a remarkable effect on the microstructure and properties of the polyimide based hybrid films. The transparency of the hybrid films decreased with increasing the content of the PVSSQ. The compatibility and interfacial interaction of the hybrid composites were evaluated by scanning electron microscope (SEM) and atomic force microscope (AFM), respectively. The PI/PVSSQ hybrids showed nanocomposite formation when the contents of PVSSQ was less than 20 wt%. It was found that the surface topography was influenced by the composition of the PVSSQ. Incorporating of the PVSSQ increased the thermal stability and Tg of hybrid composites. The dielectric constant of the hybrid composites was reduced by adding PVSSQ up to a certain content, showed a minimum and then found to be increased. The dielectric constant values of the hybrid composites ranged from 2.59 to 3.78. The presence of the PVSSQ also showed significant effects on the mechanical properties of the polyimide films. © 2003 Elsevier Science Ltd. All rights reserved.

Details

Title: Microstructure and properties of polyimide/poly(vinylsilsesquioxane) hybrid composite films
Authors: Mohammad A Wahab (Author) - Pusan National University, South Korea
I Kim (Author) - Pusan National University, South Korea
C S Ha (Author) - Pusan National University, South Korea
Publication details: Polymer, Vol.44(16), pp.4705-4713
Publisher: Elsevier Ltd.
Date published: 2003
DOI: 10.1016/S0032-3861(03)00429-4
ISSN: 0032-3861
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99450933202621
Output Type: Journal article

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Web Of Science research areas: Polymer Science