The polymn. of norbornene in the presence of different bis(salicylaldiminate)copper(II) complexes and methylalumoxane has been investigated. In all cases a high mol. wt. vinyl-type polymer was obtained. The presence of electron-withdrawing nitro groups on the chelate ligand markedly increased the activity of the catalyst. The influence on the catalytic performances and polymer characteristics as a function of reaction parameters, such as temp., duration, and content of free tri-Me aluminum in the com. MAO, was studied.
Vinyl polymerization of norbornene by bis(nitro-substituted- salicylaldiminate)copper(II)/ methylaluminoxane catalysts
CARLINI, CARLO;MARCHETTI, FABIO;RASPOLLI GALLETTI, ANNA MARIA;SBRANA, GLAUCO
2006-01-01
Abstract
The polymn. of norbornene in the presence of different bis(salicylaldiminate)copper(II) complexes and methylalumoxane has been investigated. In all cases a high mol. wt. vinyl-type polymer was obtained. The presence of electron-withdrawing nitro groups on the chelate ligand markedly increased the activity of the catalyst. The influence on the catalytic performances and polymer characteristics as a function of reaction parameters, such as temp., duration, and content of free tri-Me aluminum in the com. MAO, was studied.File in questo prodotto:
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