Micellar Behavior of Well-Defined Polystyrene-Based Block Copolymers with Triethoxysilyl Reactive Groups and Their Hydrolysis-Condensation

Ce Guinto Gamys (1) , Emmanuel Beyou (1) , Elodie Bourgeat-Lami (2)

1 IMP-LMPB - Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Polymères et des Biomatériaux
2 C2P2 - Laboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265

Block copolymers of acryloxy propyl triethoxysilane and styrene were prepared through nitroxide-mediated polymerization using alkoxyamine initiators based on N-tert-butyl-1-diethylphosphono-2,2-dimethylpropyl nitroxide. The copolymers were characterized by H-1 NMR, size exclusion chromatography and differential scanning calorimetry. Their micellar behavior in dioxane/methanol solutions was examined through static light scattering and transmission electron microscopy (TEM). TEM indicated the successful formation of spherical micelles which were subsequently frozen by the sol-gel process. Hydrolysis-condensation of the reactive ethoxysilyl side groups was followed by FTIR, H-1 NMR, and Si-29 NMR. (C) 2010 Wiley Periodicals, Inc. J Polym Sci PartA: Polym Chem 48:784-793, 2010

Mots clés: TRANSFER RADICAL POLYMERIZATION; ORGANIC/INORGANIC HYBRID; DIBLOCK COPOLYMER; CONTROLLED SHAPES; VESICLES; GELATION; SILICA; NANOPARTICLES; METHACRYLATE; POLYMERS

Domaines: Polymères; Matériaux

Ce Guinto Gamys, Emmanuel Beyou, Elodie Bourgeat-Lami. Micellar Behavior of Well-Defined Polystyrene-Based Block Copolymers with Triethoxysilyl Reactive Groups and Their Hydrolysis-Condensation. Journal of Polymer Science Part A: Polymer Chemistry, 2010, pp.784-793. ⟨10.1002/pola.23826⟩. ⟨hal-00587035⟩