6533b7d8fe1ef96bd126a1ee
RESEARCH PRODUCT
Mechanism of Anionic Polymerization of (Meth)acrylates in the Presence of Aluminium Alkyls IV. Formation of a Co-ordinative Polymer Network via the Living Aluminate End Group
Axel H. E. MüllerHelmut Schlaadsubject
Polymers and PlasticsChemistryAluminateSolution polymerizationPoly(methyl methacrylate)End-groupchemistry.chemical_compoundAnionic addition polymerizationPolymerizationvisual_artPolymer chemistryMaterials Chemistryvisual_art.visual_art_mediumLiving polymerizationLiving anionic polymerizationdescription
The polymerization of methyl methacrylate in the presence of aluminium alkyls in toluene deviates from conventional kinetics. This results predominantly from the formation and precipitation of a co-ordinative polymer gel or network. Due to the lower reactivity and accessibility of the living chains in the gel, they are regarded as ’dormant’ and thus the concentration of active species decreases during polymerization. The network formation occurs via co-ordination of the living aluminate chain end group with in-chain ester carbonyl groups. Part of the chains are deactivated by a termination process but they are free of cyclic β-ketoesters which would result from the common ’back-biting’ reaction.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-11-01 | Polymer Journal |