6533b833fe1ef96bd129c006
RESEARCH PRODUCT
Mechanism of anionic polymerization of (meth)acrylates in the presence of aluminium alkyls, 2. Kinetic investigations with methyl methacrylate in toluene
Axel H. E. MüllerHelmut Schlaadsubject
Polymers and PlasticsOrganic ChemistrySolution polymerizationchemistry.chemical_compoundAnionic addition polymerizationMonomerchemistryTriethylaluminiumPolymerizationPolymer chemistryMaterials ChemistryReactivity (chemistry)Methyl methacrylateTriisobutylaluminiumdescription
The kinetics of the polymerization of methyl methacrylate initiated by lithium alkyls (tert-butyllithium or ethyl α-lithiobutyrate) was investigated in the presence of aluminium alkyls (triethylaluminium or triisobutylaluminium) in toluene at −78°C. The rate of polymerization decreases considerably once the living dimer is formed. This suggests that the aluminate end-group coordinates with the penultimate ester group of the polymer chain, thus decreasing reactivity. The results are at variance with an activated monomer mechanism.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-06-01 | Macromolecular Rapid Communications |