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Rare earth metal initiated ring-opening polymerization of lactones

Title data

Agarwal, Seema ; Mast, Christian ; Dehnicke, Kurt ; Greiner, Andreas:
Rare earth metal initiated ring-opening polymerization of lactones.
In: Macromolecular Rapid Communications. Vol. 21 (March 2000) Issue 5 . - pp. 195-212.
ISSN 1521-3927
DOI: https://doi.org/10.1002/(SICI)1521-3927(20000301)21:5<195::AID-MARC195>3.0.CO;2-4

Official URL: Volltext

Abstract in another language

The progress in the synthesis of organolanthanide complexes supports the exploration of these compounds as initiators for ring-opening polymerization (ROP) of lactones. The performance of these initiators in terms of yield, molecular weight, polydispersity, stereoregularity is affected by the ligands and by the oxidation state of the respective rare earth metals. Several initiators are known to initiate living polymerization of lactones with excellent polydispersities of the thus obtained polymers. Differences in the performance of the initiators are caused by differences in the initiation mechanism, chain growth mechanism, or side reactions. ROP of lactones was extended to block- and graft copolymerization with polylactones, polylactides, and polyolefins either by simply utilizing living polymer chain ends, by transformation of living polymer chain ends, or by usage of polyinitiators.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: EPSILON-CAPROLACTONE POLYMERIZATION; RAY CRYSTAL-STRUCTURE; IODIDE-INDUCED TRANSFORMATION; L-LACTIDE; LIVING POLYMERIZATIONS; DIVALENT SAMARIUM; BLOCK-COPOLYMERS; MACROCYCLIC POLYMERIZATION; ORGANOLANTHANIDE COMPLEXES; ALUMINUM ISOPROPOXIDE
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 07 Apr 2015 12:41
Last Modified: 07 Apr 2015 12:41
URI: https://eref.uni-bayreuth.de/id/eprint/9863