Organosilane-modified maghemite nanoparticles and their use as co-initiator in the ring-opening polymerization of epsilon-caprolactone
| Autor: | Stéphane Mornet, Christophe Flesch, Christelle Delaite, Elodie Bourgeat-Lami, Etienne Duguet, Philippe Dumas, Mathieu Joubert |
|---|---|
| Přispěvatelé: | Institut de chimie des surfaces et interfaces de Mulhouse (ICSIM), Ecole Nationale Supérieure de Chimie de Mulhouse-Centre National de la Recherche Scientifique (CNRS), Laboratoire de chimie et procédés de polymérisation (LCPP), Centre National de la Recherche Scientifique (CNRS)-École Supérieure Chimie Physique Électronique de Lyon, Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB) |
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Materials science
Maghemite Nanoparticle 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences Ring-opening polymerization chemistry.chemical_compound Poly(var epsilon-caprolactone) Colloid and Surface Chemistry Coating Silylation N-(2-aminoethyl)-3-Aminopropyltrimethoxysilane Polymer chemistry (3-Glycidoxypropyl)trimethoxysilane chemistry.chemical_classification Nanocomposite Polymer [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Silane 0104 chemical sciences chemistry Polymerization Polycaprolactone engineering 0210 nano-technology |
| Zdroj: | Colloids and Surfaces A: Physicochemical and Engineering Aspects Colloids and Surfaces A: Physicochemical and Engineering Aspects, Elsevier, 2005, 262 (1-3), pp.150-157. ⟨10.1016/j.colsurfa.2005.04.039⟩ |
| ISSN: | 0927-7757 |
| DOI: | 10.1016/j.colsurfa.2005.04.039⟩ |
| Popis: | International audience; Hydroxyl and amino groups were introduced on maghemite nanoparticles surface by grafting of (3-glycidoxypropyl)trimethoxysilane and N-(2-aminoethyl)-3-aminopropyltrimethoxy silane, in several solvents including water, toluene and N,N-dimethylformamide. Coating of maghemite particles by a biocompatible and biodegradable polyester, namely the poly(epsilon-caprolactone) was then achieved, by an aluminum isopropoxide-catalyzed ring-opening polymerization of var epsilon-caprolactone initiated ‘from' the maghemite particles surface. Silane and polymer coating were characterized by TGA and DRIFT spectroscopy. In this manner, nanocomposites containing up to 0.43 g of polymer per gram of maghemite were obtained. |
| Databáze: | OpenAIRE |
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