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    Polymerization-Induced Self-Assembly: Ethanolic RAFT Dispersion Polymerization of 2 Phenylethyl Methacrylate

    Access Status
    Fulltext not available
    Authors
    Pei, Y.
    Lowe, Andrew
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Pei, Y. and Lowe, A. 2014. Polymerization-Induced Self-Assembly: Ethanolic RAFT Dispersion Polymerization of 2 Phenylethyl Methacrylate. Polymer Chemistry. 5 (7): pp. 2342-2351.
    Source Title
    Polymer Chemistry
    DOI
    10.1039/c3py01719b
    ISSN
    1759-9954
    URI
    http://hdl.handle.net/20.500.11937/41687
    Collection
    • Curtin Research Publications
    Abstract

    Reversible addition-fragmentation chain transfer (RAFT) radical dispersion polymerization (RAFTDP) has been employed to polymerize 2-phenylethyl methacrylate (PEMA) using poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA) macromolecular chain transfer agents (macro-CTAs) of varying average degree of polymerization (Xn). RAFTDP of PEMA in ethanol at 70 C with PDMAEMA macro-CTAs yields well-defined AB diblock copolymers that self-assemble in solution during polymerization leading to the formation of well-defined diblock copolymer nanostructures. A full morphology transition (from spheres to worms to vesicles) is observed with these formulations that is sensitive to (i) the target X n of the solvophobic polyPEMA block, (ii) the total solids content at which the PEMA block copolymerization is performed and (iii) the target Xn of PDMAEMA as a macro-CTA. Finally, we demonstrate the ability to convert the PDMAEMA–PPEMA based nanoparticles to the corresponding sulfopropylbetaine analogues by the facile reaction of the DMAEMA residues with 1,3-propanesultone.

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