Polymer coating of carboxylic acid functionalized multiwalled carbon nanotubes via reversible addition‐fragmentation chain transfer mediated emulsion polymerization |
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Authors: | Duc Nguyen Chris H. Such Brian S. Hawkett |
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Affiliation: | 1. KCPC, School of Chemistry, Faculty of Science, Chemistry Building F11, University of Sydney, New South Wales 2006, Australia;2. DuluxGroup (Australia), 1970 Princess Highway, Clayton, Vic, Australia |
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Abstract: | In this work, successful polymer coating of COOH‐functionalized multiwalled carbon nanotubes (MWCNTs) via reversible addition fragmentation chain transfer (RAFT) mediated emulsion polymerization is reported. The method used amphiphilic macro‐RAFT copolymers as stabilizers for MWCNT dispersions, followed by their subsequent coating with poly(methyl methacrylate‐co‐butyl acrylate). Poly(allylamine hydrochloride) was initially used to change the charge on the surface of the MWCNTs to facilitate adsorption of negatively charged macro‐RAFT copolymer onto their surface via electrostatic interactions. After polymerization, the resultant latex was found to contain uniform polymer‐coated MWCNTs where polymer layer thickness could be controlled by the amount of monomer fed into the reaction. The polymer‐coated MWCNTs were demonstrated to be dispersible in both polar and nonpolar solvents. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013 |
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Keywords: | amphiphilic carbon nanotubes encapsulation reversible addition‐fragmentation chain transfer (RAFT) nanocomposites coatings |
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