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- Title
Isotactic rac-Lactide Polymerization with Copper Complexes: The Influence of Complex Nuclearity.
- Authors
Fortun, Solène; Daneshmand, Pargol; Schaper, Frank
- Abstract
Diiminopyrrolide copper alkoxide complexes, LCuOR (OR1= N, N-dimethylamino ethoxide, OR2=2-pyridyl methoxide), are active for the polymerization of rac-lactide at ambient temperature in benzene to yield polymers with Mw/ Mn=1.0-1.2. X-ray diffraction studies showed bridged dinuclear complexes in the solid state for both complexes. While LCuOR1 provided only atactic polylactide, LCuOR2 produced partially isotactic polylactide ( Pm=0.7). The difference in stereocontrol is attributed to a dinuclear active species for LCuOR2 in contrast to a mononuclear species for LCuOR1.
- Subjects
ISOTACTIC polymers; LACTIDES; POLYMERIZATION research; ALKOXIDES; BENZENE; POLYLACTIC acid
- Publication
Angewandte Chemie, 2015, Vol 127, Issue 46, p13873
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201505674