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Polymerization of 3-ethynylthiophene with homogeneous and heterogeneous Rh catalysts
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SYSNO ASEP 0309484 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Polymerization of 3-ethynylthiophene with homogeneous and heterogeneous Rh catalysts Title Polymerizace 3-ethynylthiophenenu s homogenním a heterogenním Rh catalyzátorem Author(s) Svoboda, J. (CZ)
Sedláček, J. (CZ)
Zedník, J. (CZ)
Dvořáková, G. (CZ)
Trhlíková, O. (CZ)
Rédrová, D. (CZ)
Balcar, Hynek (UFCH-W) RID, ORCID
Vohlídal, J. (CZ)Source Title Journal of Polymer Science. Part A - Polymer Chemistry. - : WILEY-BLACKWELL - ISSN 0887-624X
Roč. 46, č. 8 (2008), s. 2776-2787Number of pages 12 s. Language eng - English Country US - United States Keywords catalysis ; conjugated polymers ; organometallic catalysts ; polyacetylenes Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects KAN100500652 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA203/05/2194 GA ČR - Czech Science Foundation (CSF) GD203/03/H140 GA ČR - Czech Science Foundation (CSF) GD203/08/H032 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000254978600018 DOI https://doi.org/10.1002/pola.22611 Annotation 3-Ethynylthiophene (3ETh) was polymerized with Rh(I) complexes: [Rh(cod)acac], [Rh(nbd)acac], [Rh(cod)Cl](2), and [Rh(nbd)Cl](2) (cod is eta(2):eta(2)-cycloocta-1,5-diene and nbd eta(2) :eta(2)-norborna-2,5-diene), used as homogeneous catalysts and with the last two complexes anchored on mesoporous polybenzimidazole (PBI) beads: [Rh(cod)Cl](2)/PBI and [Rh(nbd)Cl](2)/PBI used as heterogeneous catalysts. All tested catalyst systems give high-cis poly(3ETh). In situ NMR study of homogeneous polymerizations induced with [Rh(cod)acac] and [Rh(nbd)acac] complexes has revealed: (i) a transformation of acac ligands into free acetylacetone (Hacac) occurring since the early stage of polymerization, which suggests that this reaction is part of the initiation, (ii) that the initiation is rather slow in both of these polymerization systems, and (iii) a release of cod ligand from [Rh(cod)acac] complex but no release of nbd ligand from [Rh(nbd)acac] complex during the polymerization. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2009
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