Novel Metathesis Chemistry: Well-Defined Initiator Systems for Specialty Chemical Synthesis, Tailored Polymers and Advanced Material Applications

0181825 - UFCH-W 20030268 RIV NL eng M - Část monografie knihy
Vohlídal, J. - Pacovská, M. - Sedláček, J. - Svoboda, J. - Zedník, J. - Balcar, Hynek
Polymerizations Catalyzed with Rhodium Complexes.
1-4020-1571-2. In: Novel Metathesis Chemistry: Well-Defined Initiator Systems for Specialty Chemical Synthesis, Tailored Polymers and Advanced Material Applications. Dordrecht: Kluwer Academic, 2003 - (Imamoglu, Y.; Bencze, L.), s. 131-154. NATO Science Series. II. Mathematics, Physics, and Chemistry.
Grant CEP: GA ČR GA203/02/0976; GA ČR GA203/03/0281
Výzkumný záměr: CEZ:AV0Z4040901
Klíčová slova: rhodium complexes * polymerizations
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie

In the last decade, rhodium complexes are increasingly used as catalysts for a preparation of specialty polymers of diverse functionality, since a use of them brings about important advantages. Rh-catalysts (i) show unusually high tolerance to the reaction surroundings as well as to functional groups of reactants and products, (ii) they often show a precise control of the configurational structure of formed macromolecules (particularly those of polyvinylenes), (iii) they can be transformed to the living polymerization systems, (iv) they can be anchored on various inorganic and organic supports to give effective heterogeneous catalysts, and (v) they can catalyze reactions in the ionic liquid systems. Rhodium complexes are prevailingly used for a preparation of stereoregular (head-to-tail, cis-transoid) polymers of monosubstituted acetylenes, molecules of which easily adopt the helical conformation in the solid state, some of them even in solutions (e.g., molecules of poly(propiolate)s).
Trvalý link: http://hdl.handle.net/11104/0078340