Usage of complexes in homogeneous catalysis for synthesis functional materials with defined properties is one of the most significant areas of research organometallic compounds of lanthanides in the last decade. One of the way became polymers with defined properties is for example ring opening polymerization. Aliphatic polyesters, which are biodegradable and biocompatible (useful for biomedicine), can be prepared by this method. Theoretical part of this work includes preparation of lanthanidocenes, their characterization and possibilities of their use for polymer synthesis. The aim of experimental part was performance and optimizing synthesis of series lanthanocen chlorides complex (Sm, Nd a Pr) and new monopentamethylcyklopentadienyl complexes. Introduced structural types were chosen for their possibility of polymerization activity or their activation by adding alkyl reagents. The complexes were spectral characterized by 1H NMR, and IR spectroscopy. Structure was defined by roentgen structural analysis. Catalytic activities for polymerization of ?-caprolacton in toluen (laboratory temperature) were performed for selected complexes. Polycaprolactone was characterized by gel permeation chromatography and NMR.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:216642 |
| Date | January 2010 |
| Creators | Krpoun, Karel |
| Contributors | Hermanová, Soňa, Richtera, Lukáš |
| Publisher | Vysoké učení technické v Brně. Fakulta chemická |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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