Logo JG-Universität MainzProf. Dr. Axel Müller

    

136. Schmitt, B.; Stauf, W.; Müller, A.H.E.: Anionic Polymerization of (Meth)acrylates in the Presence of Cesium Halide - Trialkyl Aluminum Complexes in Toluene, Macromolecules 34, 1551 (2001)
Abstract:
The polymerization of methyl methacrylate and various acrylates initiated by ester enolates in the presence of cesium halide-trialkylaluminum complexes, Cs[AlnR2nX] (n = 1, 2; R = Et, Bui), in toluene has living and controlled character at -20 °C for methacrylates (X = Cl) and at -65 °C for n-butyl acrylate (X = F). Quantitative monomer conversions are usually reached, leading to polymers with narrow molecular weight distributions (Mw/Mn < 1.1). Kinetic investigations indicate a rather complex polymerization mechanism, and we assume an equilibrium between at least two active species. With this new initiating system, beside acrylate homopolymers, random and graft copolymers can be synthesized.

Zu dieser Publikation gibt es weitere Dateien zum Download

Passwort

powered by php + PostgreSQL - Letzte Änderung 03.02.2005- Impressum