Novel UV Initiator for Functionalization of Multiwalled Carbon Nanotubes by Atom Transfer Radical Polymerization Applied on Two Different Grades of Nanotubes

Anders Egede Daugaard, Katja Jankova Atanasova, J. Bøgelund, J.K. Nielsen, Søren Hvilsted

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A novel nonoxidative method for preparation of functionalized multiwalled carbon nanotubes (MWCNT) has been developed based on a UV sensitive initiator for atom transfer radical polymerization (ATRP). The method has been investigated with respect to ligands and polymerization time for the preparation of polystyrene functionalized MWCNT. It was found that pentamethyldiethylenetriamine (PMDETA) gave superior results with higher loading in shorter polymerization time. A comparative study of the method applied on two different grades of nonoxidized MWCNT has been performed, illustrating large differences in reactivity and polymer loading, underlining the importance of the choice of MWCNT starting material. In addition to styrene, also poly(ethylene glycol) methacrylate (PEGMA) was shown to polymerize from the surface of the MWCNT. Finally, initial results from composites of polystyrene or polyphenylenesulfide are presented.
Original languageEnglish
JournalJournal of Polymer Science. Part A, Polymer Chemistry
Volume48
Issue number20
Pages (from-to)4594-4601
ISSN0887-624X
DOIs
Publication statusPublished - 2010

Keywords

  • multiwalled carbon nanotubes
  • polystyrene
  • atom transfer radical polymerization
  • ultra violet light
  • surface initiation
  • composites

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