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 40505
Title Formation of micelles with complex coacervate cores.
Author(s) Cohen Stuart, M.A.; Besseling, N.A.M.; Fokkink, R.G.
Source Langmuir 14 (1998). - ISSN 0743-7463 - p. 6846 - 6849.
Department(s) Physical Chemistry and Colloid Science
Publication type Refereed Article in a scientific journal
Publication year 1998
Abstract Micelles are commonly regarded as colloidal structures spontaneously formed by amphiphilic molecules, that is, molecules consisting of two distinct parts of which one is soluble and the other is insoluble. This definition is too restrictive: other kinds of molecules can also form micelles. We report on the formation of micelles from a mixture of a (water-soluble) polyanion and a diblock copolymer with two entirely water-soluble blocks: one cationic and one neutral. The cationic block forms a complex coacervate with poly(acrylic acid); the neutral block serves as a stablizing block, prohibiting the growth of the complex coacervate droplets to macroscopic sizes. The formation of these micelles upon mixing is preceded by a macroscopic phase separation. The polymer-rich phase which initially forms rearranges into a stable micellar solution.
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