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Polyurethane Nanocomposites Crosslinked with Amino Terminated Poly(dimethylsiloxane) Functionalized Multi-Walled Carbon Nanotubes

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A new route to synthesize polymeric carbon nanotube (CNTs)/polyurethane (PU) nanocomposites has been developed. Multiwalled CNTs functionalized by chemical modification of amino terminated poly(dimethylsiloxane) (ATPD) were incorporated as a crosslinker. Raman microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis were used to characterize the ATPD functionalized CNTs (ATPD-CNTs). The dispersibility of ATPD-CNTs in the nanocomposites, the dynamic mechanical properties and thermal stability of the PU nanocomposites were also investigated. The results indicated ATPD was grafted on the surface of CNTs via an amidation reaction. ATPD-CNTs was well dispersed in PU matrix. The dynamic mechanical analysis results indicated lowering of storage modulus and enhancement of chain flexibility for ATPD-CNTs/PU compared to pristine PU. The nanocomposites crosslinked by ATPD also showed an improved thermal stability.
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Document Type: Research Article

Publication date: January 1, 2015

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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