Preparation of single-walled carbon nanotube (SWNT) gel composites using poly(ionic liquids)

Seung Hyun Hong, Tran Thanh Tung, Le Kim Huyen Trang, Tae Young Kim, Kwang S. Suh

    Research output: Contribution to journalArticlepeer-review

    50 Citations (Scopus)

    Abstract

    This paper reports a new and practical route for synthesizing nanotube-polymeric ionic liquids gel by noncovalent functionalization of oxidized single-walled carbon nanotube (SWNT) surfaces with imidazolium-based poly (ionic liquids) (PILs), using in situ radical polymerization method. A black and homogeneous precipitate SWNTs was obtained as a gel form, which is well dispersed in aqueous solution without any aggregation. The formation of SWNT gels is explained by the electrostatic attractions or π-bonds between the SWNT surface and the PIL matrix. By anionexchange reaction of PIL bound to SWNTs, hydrophilic anions in PIL were substituted with hydrophobic anions, resulting in an effective transfer of SWNT-PIL hydrogels to organogels. The result also showed that SWNTs can effectively improve the conductivity along with the thermal stability of nanocomposite gels.

    Original languageEnglish
    Pages (from-to)1013-1018
    Number of pages6
    JournalColloid and Polymer Science
    Volume288
    Issue number9
    DOIs
    Publication statusPublished - 2010 Jun

    Keywords

    • Carbon nanotubes
    • Hydrogels
    • Nanocomposite
    • Organogels

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Polymers and Plastics
    • Colloid and Surface Chemistry
    • Materials Chemistry

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