title: Insertion Homo- and Copolymerization of Diallyl Ether.
abstract: The previously unresolved issue of polymerization of allyl monomers CH2 CHCH2 X is overcome by a palladium-catalyzed insertion polymerization of diallyl ether as a monomer. An enhanced 2,1-insertion of diallyl ether as compared to mono-allyl ether retards the formation of an unreactive five-membered cyclic O-chelate (after 1,2-insertion) that otherwise hinders further polymerization, and also enhances incorporation in ethylene polymers (20.4 mol %). Cyclic ether repeat units are formed selectively (96 %-99 %) by an intramolecular insertion of the second allyl moiety of the monomer. These features even enable a homopolymerization to yield polymers (poly-diallyl ether) with degrees of polymerization of DPn ≈44.
authors.affiliation: Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457 Konstanz (Germany).
authors.forename: Zhongbao
authors.initials: Z
authors.lastname: Jian
authors.affiliation: Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457 Konstanz (Germany). stefan.mecking@uni-konstanz.de.
authors.forename: Stefan
authors.initials: S
authors.lastname: Mecking
keywords: allyl monomer; homogeneous catalysis; insertion; palladium; polymerization