NDLI: Ultra low dielectric constant soluble polyhedral oligomeric silsesquioxane (POSS)–poly(aryl ether ketone) nanocomposites with excellent thermal and mechanical properties

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Journal of Materials Chemistry C Vol - 2 Issue - 5

Journal of Materials Chemistry C Vol -1

Ultra low dielectric constant soluble polyhedral oligomeric silsesquioxane (POSS)–poly(aryl ether ketone) nanocomposites with excellent thermal and mechanical properties

Content Provider	Royal Society of Chemistry (RSC)
Author	Lu, Yaning Wang, Guibin Huo, Pengfei Mu, Jianxin Du, Yinlong Luan, Jiashuang Huo, Mingxin Zhang, Shuling Geng, Zhi
Copyright Year	2014
Abstract	A series of novel ultra low dielectric constant soluble organic–inorganic nanocomposites in which nanoscale octa-aminophenyl polyhedral oligomeric silsesquioxanes (octaAmino POSS-Ph8) were covalently linked onto the fluoropoly(ether ether ketone)s (PEEK-CF3-COOH) were prepared and characterized. The chemical structures of the polymer matrix and nanocomposites were confirmed by 1H NMR and FT-IR spectra. The analysis of wide-angle X-ray diffraction (WAXD) and X-ray photoelectron spectra (XPS) indicated that the POSS clusters were successfully incorporated into the polymer matrix and the homogeneous dispersion of POSS cages in the polymer matrix was evidenced by scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS) (Si-mapping). Furthermore, the influence of the incorporation of POSS particles on the properties of nanocomposites is investigated. The dielectric constants of the organic–inorganic nanocomposites were drastically reduced relative to neat PEEK-CF3-COOH films and the dielectric constant could achieve as low as 1.71 (1 MHz). Besides, the thermal and mechanical properties of the nanocomposites were significantly improved by incorporation of octaAmino POSS-Ph8 moieties. Meanwhile, the nanocomposite thin films still retained the good transparency.
Starting Page	1094
Ending Page	1103
Page Count	10
File Format	HTM / HTML PDF
ISSN	20507526
Volume Number	2
Issue Number	6
Journal	Journal of Materials Chemistry C
DOI	10.1039/c3tc31557f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Relative permittivity Ether Ketone Polymer Composite material Nuclear magnetic resonance Fourier-transform infrared spectroscopy X-ray crystallography Photoemission spectroscopy Dispersion relation Scanning electron microscope Spectrometer Dielectric Nanocomposite
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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