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Borohydrido Rare Earth Complexes as Precatalysts for the Polymerisation of Styrene
Author(s) -
Zinck Philippe,
Visseaux Marc,
Mortreux André
Publication year - 2006
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200600143
Subject(s) - lanthanide , styrene , rare earth , catalysis , polymerization , magnesium , chemistry , polymer chemistry , metal , atom (system on chip) , alkaline earth metal , organic chemistry , copolymer , polymer , mineralogy , ion , computer science , embedded system
Borohydrido based lanthanide complexes associated with n ‐butylethylmagnesium are efficient catalytic systems for the polymerisation of styrene. The reaction is quantitative at 50 °C after several hours. Two growing chains per magnesium atom can be evidenced, and chain transfer between the lanthanide and the magnesium atoms may occur. The activity of such catalytic systems is found to be related to the nature of the rare earth metal.