|Publisher DOI:||10.1002/mame.201200066||Title:||Impact of filler functionalisation on the crystallinity, thermal stability and mechanical properties of thermoplastic elastomer/carbon nanotube nanocomposites||Language:||English||Authors:||Prado, Luís Antônio Sanchez de Almeida
|Keywords:||carbon nanotubes;functionalization;interfaces;mechanical properties;thermoplastic elastomers||Issue Date:||2-Aug-2012||Publisher:||Wiley-Interscience||Source:||Macromolecular Materials and Engineering 3 (298): 359-370 (2013)||Journal or Series Name:||Macromolecular materials and engineering||Abstract (english):||In the present work, the functionalisation of oxidised SWCNTs and MWCNTs is studied. The functionalised fillers are characterised by Raman spectroscopy and TGA. The functionalised fillers are dispersed in a PBT-PTMO thermoplastic elastomer matrix via in situ polymerisation. The functionalisation causes a fine filler dispersion right at beginning of nanocomposite manufacturing. The fillers act as nucleating agents for crystallisation and evidences for a grafting from PBT at the surface of the functionalised nanotubes are found. An outstanding reinforcement effect by the functionalised CNTs is confirmed by tensile tests. A new and facile functionalization of carbon nanotubes with 1,4-butanediol is proposed. The modified fillers could improve the mechanical properties of thermoplastic elastomers based on poly(butylene terephthalate co-tetramethylene oxide) multi-block copolymers. The nice dispersion and strong interfacial adhesion led to improved mechanical performance. Thermal analysis evidences the chemical coupling of poly(butylene terephthalate) at the functionalized nanoparticles surface. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.||URI:||http://hdl.handle.net/11420/6915||ISSN:||1439-2054||Institute:||Kunststoffe und Verbundwerkstoffe M-11||Type:||(wissenschaftlicher) Artikel||Funded by:||Deutsche Forschungsgemeinschaft (DFG) (Grant Number: Schu 926/14‐1).|
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