Reference : About the methods of preparation of poly(ethylene oxide)-b-poly(epsilon-caprolactone)...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/8148
About the methods of preparation of poly(ethylene oxide)-b-poly(epsilon-caprolactone) nanoparticles in water. Analysis by dynamic light scattering
English
Vangeyte, Patrick [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Gautier, Sandrine [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Robert mailto [Center for Education and Research on Macromolecules (CERM) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
2-Aug-2004
Colloids and Surfaces A : Physicochemical and Engineering Aspects
Elsevier
242
1-3
203-211
Yes (verified by ORBi)
International
0927-7757
Amsterdam
[en] self-assembly in solution ; organic nanoparticle
[en] Self-assembly of nonionic amphiphilic poly(ethylene oxide)-b-poly(ε-caprolactone) (PEO-b-PCL) and poly(ethylene oxide)-b-poly(γ-methyl-ε-caprolactone) (PEO-b-PMCL) has been studied in water by dynamic light scattering (DLS). The aqueous solutions have been prepared by three methods, i.e., dialysis of solutions in a common organic solvent against water, rapid addition of water to organic solutions, and rapid addition of organic solutions into water. Several common organic solvents have been used: tetrahydrofuran (THF), dimethylformamide (DMF), dimethylacetamide (DMAc) and dimethylsulfoxide (DMSO). The dialysis method is not reproducible and leads to very large and polydispersed particles (~1µm). In contrast, nanoparticles are formed by the two other methods with a low polydispersity and a size in the 30-10 nm range, depending on the organic solvent used. The particle size increases when the concentration in the organic solvent is decreased. The effect of temperature and length of the hydrophobic block has also been studied.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA
Researchers
http://hdl.handle.net/2268/8148
10.1016/j.colsurfa.2004.04.070
http://www.elsevier.com/wps/find/journaldescription.cws_home/500844/description#description
http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TFR-4CPVN5M-1-1&_cdi=5233&_user=532038&_orig=search&_coverDate=08%2F02%2F2004&_sk=997579998&view=c&wchp=dGLzVlz-zSkWA&md5=b853521937ab55417a43a6cbc00bd689&ie=/sdarticle.pdf
The authors acknowledge Colloids and Surfaces A : Physicochemical and Engineering Aspects (Elsevier) for allowing them to archive this paper.

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