Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 489123
Title Self-assembled structures of PMAA-PMMA block copolymers: Synthesis, characterization, and self-consistent field computations
Author(s) Li, F.; Schellekens, J.; Bont, J.A.M. de; Peters, R.; Overbeek, A.; Leermakers, F.A.M.; Tuinier, R.
Source Macromolecules 48 (2015)4. - ISSN 0024-9297 - p. 1194 - 1203.
Department(s) AFSG Staff Departments (WUATV)
Physical Chemistry and Soft Matter
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) controlled radical polymerization - laser-light scattering - emulsion polymerization - association behavior - aqueous-medium - micelles - surfactants - vesicles - thermodynamics - morphologies
Abstract Block copolymers composed of methacrylic acid (MAA) and methyl methacrylate (MMA) blocks are interesting candidates for replacing surfactants in emulsion polymerization methods. Here the synthesis and experimental characterization of well-defined PMAA–PMMA block copolymers made via RAFT polymerization are reported. It is shown that these block copolymers self-organize in water into micellar spherical or cylindrical structures or into highly size disperse structures (probably vesicles) in aqueous salt solutions upon increasing the pH. The physical properties of the polymer dispersions depend on the self-organization morphology which is determined by the diblock copolymer PMAA and PMMA block lengths. The relation between diblock copolymer block lengths and the self-organized structures is rationalized using self-consistent field theory (SCFT). Theoretically predicted self-assembled structures of MAAx–MMAy block copolymers are compared with the results obtained from experiments. Size and morphology of the self-assembled structures are in good agreement with SCFT.
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