MASTER DE CHIMIE DE PARIS CENTRE - M2S2 stage 2013
Transcription
MASTER DE CHIMIE DE PARIS CENTRE - M2S2 stage 2013
MASTER DE CHIMIE DE PARIS CENTRE - M2S2 stage 2013-2014 Spécialité(s) de rattachement (préciser oui/non) Chimie analytique, physique, et théorique : non Chimie moléculaire : oui Chimie et physico-chimie des matériaux : oui Ingénierie chimique : non Laboratoire d’accueil Intitulé : Laboratoire de chimie des polymères Adresse : 3, rue Galilée 2eme étage 94200 Ivry sur Seine Directeur (Nom, Prénom) : Fradet Alain Tél : 01 44 27 37 38 E-mail : [email protected] Responsable du stage Nom, Prénom : Stoffelbach François Fonction : Maître de conférences Tél : 01 44 27 51 37 E-mail : [email protected] Période de stage : 5 mois de début février 2014 à fin juin 2014 TITRE : STRAPA (Multi STimuli Responsive Aqueous Polymer Assemblies) Projet scientifique: The development and application of multi-stimuli responsive materials is a burgeoning field of study in leading research groups in the USA, Asia and mainland Europe (at present this field is underrepresented in France). Such soft advanced materials are expected to revolutionize nano-science, engineering and technology and, therefore, they are key to many countries future technological competitiveness. However, there is no doubt that the creation of such high performance materials relies directly on our ability to manipulate these “smart” materials in a controllable, predictable and orchestrated fashion at the molecular and also at supramolecular level. In this context, during this training course, we propose to engineer and study a new class of supramolecular polymer materials including block copolymers, branched polymers, star (co)polymers, and networks structures capable of responding to multiple external stimuli in a controllable and predictable fashion in aqueous environments. The architectures of these materials will be constructed by specifically bringing together complementary well-defined polymer building blocks (prepared by Controlled Radical Polymerization) with specially designed host/guest motifs attached in specific locations on polymer backbones. Then, we will exploit well-defined polymer building blocks whereby the “periphery” can be reversibly modified. This lock and key approach will offer the unique opportunity to control polymer structure (e.g topology and morphology) and properties. Furthermore, the inherent reversibility of supramolecular architectures will allow “on demand” modular and tunable modification of structure and properties of appropriately functionalized macromolecules, and thus will afford novel systems with applications in materials science and nanotechnology. 2. Techniques/méthodes utilisées Synthèse organique (synthèse, purification, caractérisations : RMN, IR, MS…) Polymérisation radicalaire contrôlée Caractérisation des polymères (chromatographie d'exclusion stérique, RMN, MALDI-TOF MS, etc.) Formation de films minces/Etude de leur structuration par A.F.M. 3. Références 1) L. Sambe, K. Belal, F. Stoffelbach, J. Lyskawa, F. Delattre, M. Bria, F. X. Sauvage, M. Sliwa, V. Homblot, B. Charleux, G. Cooke, P. Woisel « Multi-Stimuli Responsive Supramolecular Diblock Copolymers » soumise récemment Polym. Chem 2013 accepted. 2) L. Sambe, F. Stoffelbach, J. Lyskawa, F. Delattre, D. Fournier, L. Bouteiller, B. Charleux,G. Cooke, P. Woisel “Host-Guest Modulation of the Micellization of a Tetrathiafulvalene-Functionalized Poly(N-isopropylacrylamide)” Macromolecules, 2011, 44(16), 6532-6538. 3) J. Bigot, B. Charleux, G. Cooke, F. Delattre, D. Fournier, J. Lyskawa, L. Sambe, F. Stoffelbach, P. Woisel “Tetrathiafulvalene EndFunctionalized Poly(N-isopropylacrylamide): A New Class of Amphiphilic Polymer for the Creation of Multistimuli Responsive Micelles” J. Am. Chem. Soc., 2010, 132(31), 10796-10801. 4) J. Bigot, B. Charleux, G. Cooke, F. Delattre, D. Fournier, J. Lyskawa, F. Stoffelbach, P. Woisel “Synthesis and Properties of Tetrathiafulvalene End-Functionalized Polymers Prepared via RAFT Polymerization” Macromolecules, 2010, 43(1), 82-90. 5) J. Bigot, M. Bria, S. T. Caldwell, F. Cazaux, A. Cooper, B. Charleux, G. Cooke, F. Delattre, B. Fitzpatrick, D. Fournier, J. Lyskawa, M. Nutley, F. Stoffelbach, P. Woisel “LCST: A Powerful Tool to Control Complexation Between a Dialkoxynaphtalene functionalised Poly(N-isopropylacrylamide) and CBPQT4+ In Water” Chem. Commun., 2009, 5266-5268.