6533b854fe1ef96bd12adeb9
RESEARCH PRODUCT
Anionic Polymerization of (Meth)acrylates in the Presence of Tetraalkylammonium Halide−Trialkyl Aluminum Complexes in Toluene. 3. Kinetic Investigations on Primary Acrylates
Axel H. E. MüllerBardo Schmittsubject
chemistry.chemical_classificationAcrylatePolymers and PlasticsOrganic ChemistrySolution polymerizationPolymerTolueneInorganic Chemistrychemistry.chemical_compoundMonomerAnionic addition polymerizationchemistryPolymerizationPolymer chemistryMaterials ChemistryCopolymerdescription
The polymerization of n-butyl acrylate initiated by ester enolates in the presence of tetraalkylammonium halide−trialkylaluminum complexes, R4N[AlnR‘3nX] (n = 1, 2), in toluene has a controlled character at −78 °C only for selected combinations of the complex. Quantitative monomer conversions are usually reached with Me4N[AlnBui3nCl] leading to polymers with narrow molecular weight distributions (Mw/Mn < 1.2). Kinetic investigations show a complex mechanism of the polymerization, implying an equilibrium between at least two active species. Besides, various acrylate homopolymers and block copolymers (PMMA-b-polyacrylate) can be synthesized with this new initiating system.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-03-01 | Macromolecules |