Electrostatic hierarchical co-assembly in aqueous solutions of two oppositely charged double hydrophilic diblock copolymers

I.K. Voets, A. de Keizer, F.A.M. Leermakers, A. Debuigne, R.J. Jerome, C. Detrembleur, M.A. Cohen Stuart

    Research output: Contribution to journalArticleAcademicpeer-review

    16 Citations (Scopus)

    Abstract

    The formation of spherical micelles in aqueous solutions of poly(N-methyl-2-vinyl pyridinium iodide)-block-poly(ethylene oxide), P2MVP-b-PEO and poly(acrylic acid)-block-poly(vinyl alcohol), PAA-b-PVOH has been investigated with light scattering-titrations, dynamic and static light scattering, and 1H 2D Nuclear Overhauser Effect Spectroscopy. Complex coacervate core micelles, also called PIC micelles, block ionomer complexes, and interpolyelectrolyte complexes, are formed in thermodynamic equilibrium under charge neutral conditions (pH 8, 1 mM NaNO3, T = 25 °C) through electrostatic interaction between the core-forming P2MVP and PAA blocks. 2D 1H NOESY NMR experiments show no cross-correlations between PEO and PVOH blocks, indicating their segregation in the micellar corona. Self-consistent field calculations support the conclusion that these C3Ms are likely to resemble a ‘patched micelle’; that is, micelles featuring a ‘spheres-on-sphere’ morphology
    Original languageEnglish
    Pages (from-to)2913-2925
    JournalEuropean Polymer Journal
    Volume45
    Issue number10
    DOIs
    Publication statusPublished - 2009

    Keywords

    • polyion complex micelles
    • mediated radical polymerization
    • coacervation core micelles
    • block ionomer complexes
    • water-soluble complexes
    • polyelectrolyte complexes
    • poly(ethylene oxide)
    • light-scattering
    • hybrid micelles
    • coronal chains

    Fingerprint Dive into the research topics of 'Electrostatic hierarchical co-assembly in aqueous solutions of two oppositely charged double hydrophilic diblock copolymers'. Together they form a unique fingerprint.

  • Cite this