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RESEARCH PRODUCT

Kinetics and Mechanisms in the Anionic Polymerization of Methacrylic Esters

Axel H. E. Müller

subject

chemistry.chemical_classificationAnionic addition polymerizationchemistryPolymerizationPolymer chemistrytechnology industry and agricultureCopolymerChain transfermacromolecular substancesPolymerMethacrylateIonic polymerizationLiving anionic polymerization

description

Under appropriate conditions the anionic polymerization of methacrylates proceeds in an ideal manner leading to polymers with narrow molecular weight distributions. From the kinetics of polymerization and from the microstructure of the polymers the existence of different active species is concluded, the most important one being a peripherally solvated contact ion pair. Depending on polymerization conditions two different modes of monomer addition can occur. Homo- and copolymerization experiments show that the influence of the ester group is mainly given by electronic effects. In non- polar solvents the polymerization of tert.-butyl methacrylate (in contrast to methyl methacrylate) leads to 100% isotactic polymers with rather low polydispersities.

yearjournalcountryeditionlanguage
1987-01-01
https://doi.org/10.1007/978-94-009-3175-6_15