Organosoluble star polymers from a cyclodextrin core

K. Karaky (1) , Stephanie Reynaud (1) , Laurent Billon (1) , Jeanne François (1) , Y. Chreim

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux

Well-defined star polymers were synthesized with a combination of the core-first method and atom transfer radical polymerization. The control of the architecture of the macroinitiator based on β-cyclodextrin bearing functional bromide groups was determined by 13C NMR, fast atom bombardment mass spectrometry, and elemental analysis. In a second step, the polymerization of the tert-butyl acrylate monomer was optimized to avoid a star-star coupling reaction and allowed the synthesis of a well-defined organosoluble polymer star. The determination of the macromolecular dimensions of these new star polymers by size exclusion chromatography/ light scattering was in agreement with the structure of armed star polymers in a large range of predicted molecular weights. This article describes a new approach to polyelectrolyte star polymers by postmodifipation of poly(tert-butyl acrylate) by acrylic arm hydrolysis in a water-soluble system. © 2005 Wiley Periodicals, Inc.

Domaines: Polymères; Matériaux

K. Karaky, Stephanie Reynaud, Laurent Billon, Jeanne François, Y. Chreim. Organosoluble star polymers from a cyclodextrin core. Journal of Polymer Science Part A: Polymer Chemistry, 2005, 43 (21), pp.5186-5194. ⟨10.1002/pola.21012⟩. ⟨hal-01564108⟩