Reference : Morphology of core-shell-corona aqueous micelles: II. Addition of core-forming homopolymer
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/4348
Morphology of core-shell-corona aqueous micelles: II. Addition of core-forming homopolymer
English
Lei, Liangcai C [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Gohy, Jean-François [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Willet, Nicolas mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Zhang, Jian-Xin [Polymer Source, Dorval, Canada > > > >]
Varshney, Sunil [Polymer Source, Dorval, Canada > > > >]
Jérôme, Robert mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
3-Jun-2004
Polymer
Elsevier Sci Ltd
45
13
4375-4381
Yes (verified by ORBi)
International
0032-3861
Oxford
[en] self-assembly in solution ; micelle ; stimuli responsive micelle
[en] The poly(styrene)-block-poly(2-vinylpyridine)-block-poly(ethylene oxide) triblock copolymer PS200-b-P2VP(140)-b-PEO590, where the subscripts refer to the number average degrees of polymerization, forms spherical micelles in water, that consist of a PS core, a pH-responsive P2VP shell and a PEO corona. This triblock has been added with homo-PS before micellization in order to increase the volume fraction of the core-forming block. The length of the added homo-PS has been varied with respect to the length of the PS core-forming block: much shorter, much longer and approximately the same. The structure of the micelles has been investigated by transmission electron microscopy, static and dynamic light scattering. Homo-PS phase separates whenever its length is larger than the one of the PS core-forming chains; otherwise this phenomenon occurs beyond a critical concentration that depends on molecular weight. The addition of homo-PS has no influence on the morphology of the micelles and on the characteristic size of both the PS core and the P2VP shell, although the hydrodynamic diameter of the micelles is decreased. Substitution of styrene for homopolystyrene results in transition from a spherical to a dominant rod-like morphology. (C) 2004 Published by Elsevier Ltd.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Fondation Européenne de la Science = European Science Foundation - ESF, SUPERNET program
Researchers
http://hdl.handle.net/2268/4348
10.1016/j.polymer.2004.04.040
http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TXW-4CCNV6H-1-1G&_cdi=5601&_user=532038&_orig=browse&_coverDate=06%2F30%2F2004&_sk=999549986&view=c&wchp=dGLbVtz-zSkzS&md5=134f1be3418b6d6bdf0325c19562a489&ie=/sdarticle.pdf
http://www.elsevier.com/wps/find/journaldescription.cws_home/30466/description#description
The authors acknowledge Polymer (Elsevier) for allowing them to archive this paper.

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