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Open AccessArticle

Preparation and Preliminary Dielectric Characterization of Structured C60-Thiol-Ene Polymer Nanocomposites Assembled Using the Thiol-Ene Click Reaction

Department of Chemistry and Biochemistry, University of Southern Mississippi, 118 College Drive, Hattiesburg, MS 39406, USA
Center for Advanced Materials, Qatar University, Doha P.O. Box 2713, Qatar
School of Polymers and High Performance Materials, University of Southern Mississippi, Hattiesburg, MS 39406, USA
U.S. Army Engineer Research and Development Center, Information Technology Laboratory, Institute for Systems Engineering Research, 3909 Halls Ferry Road, Vicksburg, MS 39180, USA
Faculty of Engineering, Benha University, Shoubra, Benha 13 512, Egypt
Author to whom correspondence should be addressed.
Academic Editor: Biqiong Chen
Materials 2015, 8(11), 7795-7804;
Received: 30 September 2015 / Revised: 4 November 2015 / Accepted: 12 November 2015 / Published: 18 November 2015
(This article belongs to the Special Issue Polymer Nanocomposites)
Fullerene-containing materials have the ability to store and release electrical energy. Therefore, fullerenes may ultimately find use in high-voltage equipment devices or as super capacitors for high electric energy storage due to this ease of manipulating their excellent dielectric properties and their high volume resistivity. A series of structured fullerene (C60) polymer nanocomposites were assembled using the thiol-ene click reaction, between alkyl thiols and allyl functionalized C60 derivatives. The resulting high-density C60-urethane-thiol-ene (C60-Thiol-Ene) networks possessed excellent mechanical properties. These novel networks were characterized using standard techniques, including infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), and thermal gravimetric analysis (TGA). The dielectric spectra for the prepared samples were determined over a broad frequency range at room temperature using a broadband dielectric spectrometer and a semiconductor characterization system. The changes in thermo-mechanical and electrical properties of these novel fullerene-thiol-ene composite films were measured as a function of the C60 content, and samples characterized by high dielectric permittivity and low dielectric loss were produced. In this process, variations in chemical composition of the networks were correlated to performance characteristics. View Full-Text
Keywords: dielectric properties; fullerenol; thiol-ene; nanocomposites dielectric properties; fullerenol; thiol-ene; nanocomposites
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MDPI and ACS Style

Ahmed, H.M.; Windham, A.D.; Al-Ejji, M.M.; Al-Qahtani, N.H.; Hassan, M.K.; Mauritz, K.A.; Buchanan, R.K.; Buchanan, J.P. Preparation and Preliminary Dielectric Characterization of Structured C60-Thiol-Ene Polymer Nanocomposites Assembled Using the Thiol-Ene Click Reaction. Materials 2015, 8, 7795-7804.

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