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    Grafting amphiphilic brushes onto halloysite nanotubes via a living raft polymerization and their Pickering emulsification behavior

    Access Status
    Fulltext not available
    Authors
    Hou, Y.
    Jiang, J.
    Li, K.
    Zhang, Y.
    Liu, Jian
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Hou, Y. and Jiang, J. and Li, K. and Zhang, Y. and Liu, J. 2014. Grafting amphiphilic brushes onto halloysite nanotubes via a living raft polymerization and their Pickering emulsification behavior. Journal of Physical Chemistry B. 118 (7): pp. 1962-1967.
    Source Title
    Journal of Physical Chemistry B
    DOI
    10.1021/jp411610a
    ISSN
    1520-6106
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/73118
    Collection
    • Curtin Research Publications
    Abstract

    Amphiphilic brushes of poly(4-vinylpyridine)-block-polystyrene (P4VP-b-PS) and polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) are grafted onto halloysite nanotubes (HNTs) via a surface reversible addition-fragmentation chain transfer (RAFT) living polymerization through anchoring R group in RAFT agent S-1-dodecyl-S'-(R,R'-dimethyl-R?-acetic acid) trithiocarbonates (DDMAT). The characterization of TGA, TEM, and GPC show that amphiphilic brushes are successfully grafted onto HNTs in a living manner. To verify the amphiphilicity of HNTs grafted with block copolymers, their Pickering emulsification behavior in water/soybean oil diphase mixture is studied. The results show that modified HNTs can emulsify water/soybean oil diphase mixture and the emulsification performance is dependent on microstructure of amphiphilic brushes such as hydrophilic/hydrophobic segment size and sequence. © 2014 American Chemical Society.

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