Reference : pH-Dependence of the morphology of micelles formed by poly(2-vinylpyridine)-block-poly(e...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/9145
pH-Dependence of the morphology of micelles formed by poly(2-vinylpyridine)-block-poly(ethylene oxide) copolymers in water
English
Gohy, Jean-François [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Mores, Sandrine [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Varshney, Sunil K [Polymer Source, Dorval, Canada > > > >]
Zhang, Jian-Xin [Polymer Source, Dorval, Canada > > > > > >]
Jérôme, Robert mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
26-Apr-2002
e-Polymers
European Polymer Federation
21
1-8
Yes (verified by ORBi)
International
1618-7229
Strasbourg
[en] self-assembly in solution ; micelle ; stimuli responsive micelle
[en] The morphology of micelles formed by two poly(2-vinylpyridine)-block-poly(ethylene oxide) (P2VP-b-PEO) copolymers has been studied in phosphate-buffered water by dynamic light scattering and transmission electron microscopy. Spherical micelles are observed when the P2VP block is the minor component of the diblock copolymer. When P2VP dominates the composition, transition from spheres-to-rods-to-vesicles takes place in a narrow pH range that straddles the pKa of P2VP. This transition is controlled by the degree of protonation of the P2VP blocks. At high pH, the copolymer precipitates from the solution.
Center for Education and Research on Macromolecules (CERM)
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; The European Science Foundation (ESF) in the frame of the SUPERNET program
Researchers
http://hdl.handle.net/2268/9145
http://www.e-polymers.org/journal/list.cfm#

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