6533b85bfe1ef96bd12bb341

RESEARCH PRODUCT

Mechanism of anionic polymerization of (meth)acrylates in the presence of aluminium alkyls, 1. 13C NMR studies of model compounds in toluene

Helmut SchlaadHeinz KolshornAxel H. E. Müller

subject

Aluminium chloridePolymers and PlasticsOrganic Chemistrychemistry.chemical_elementCarbon-13 NMRAte complexchemistry.chemical_compoundMonomerAnionic addition polymerizationchemistryPolymerizationAluminiumPolymer chemistryMaterials ChemistrymedicineMethyl methacrylatemedicine.drug

description

The bimetallic ate complex [(CH 3 ) 2 C=C(OEt)(O - AlR 3 )]Li + is regarded to be the model of the active centre of the polymerization of methyl methacrylate in the presence of aluminium alkyls. This complex is detectable by 13 C NMR up to 273 K. At ambient temperature irreversible decomposition takes place. Apart from the formation of the ate complex, excess aluminium chloride coordinates to the ester carbonyl groups of both the monomer and the polymer chain

https://doi.org/10.1002/marc.1994.030150611