Two enantiomers of a chiral binaphthyl-bridged salen dichlorozirconium (IV) complex (namely R-L-1 and S-D-1) were synthesized and tested as pre-catalysts for 4-methyl-1-hexene (4MH) polymerization. Their behavior was compared with that of the same complex in its racemic form. Isotactic poly(4- methyl-1-hexene) was produced in both cases, but the polymerization of racemic 4MH promoted by the optically active catalysts preferentially consumed one antipode, showing some stereoselectivity for the process.
Stereospecific and Stereoselective Polymerization of 4-Methyl-1-hexene by Enantiomeric Binaphthyl-Bridged Salen Dichlorozirconium (IV) Complexes
STRIANESE, MARIA;LAMBERTI, Marina;MAZZEO, Mina;PELLECCHIA, Claudio
2007-01-01
Abstract
Two enantiomers of a chiral binaphthyl-bridged salen dichlorozirconium (IV) complex (namely R-L-1 and S-D-1) were synthesized and tested as pre-catalysts for 4-methyl-1-hexene (4MH) polymerization. Their behavior was compared with that of the same complex in its racemic form. Isotactic poly(4- methyl-1-hexene) was produced in both cases, but the polymerization of racemic 4MH promoted by the optically active catalysts preferentially consumed one antipode, showing some stereoselectivity for the process.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
