M. Farina, M. Grassi, G. Silvestro
1985
Citations
0
Influential Citations
7
Citations
Journal
European Polymer Journal
Abstract
Abstract Anionic polymerization of methyl sorbate produces polymers of different microstructures according to the catalytic system employed. An examination of the i.r., 1H- and 13C-NMR spectra, for poly(methyl sorbate) and for the saturated polymer obtained by non-catalytic reduction of the double bond, together with comparison with low-molecular-weight model compounds, makes it possible to assign an erythro-structure to the polymer obtained in the presence of butyl lithium and a threo-structure to the polymer obtained in the presence of the catalytic system(butyl lithium + tetramethylurea). The steric purity of such polymers is rather low.