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On the structure of polymeric composite of metallacarborane with poly(ethylene oxide)
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SYSNO ASEP 0360030 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title On the structure of polymeric composite of metallacarborane with poly(ethylene oxide) Author(s) Matějíček, P. (CZ)
Brus, Jiří (UMCH-V) RID, ORCID
Jigounov, Alexander (UMCH-V) RID, ORCID
Pleštil, Josef (UMCH-V) RID
Uchman, M. (CZ)
Procházka, K. (CZ)
Gradzielski, M. (DE)Source Title Macromolecules. - : American Chemical Society - ISSN 0024-9297
Roč. 44, č. 10 (2011), s. 3847-3855Number of pages 9 s. Language eng - English Country US - United States Keywords polymer ; metallacarborane ; poly(ethylene oxide) Subject RIV CB - Analytical Chemistry, Separation R&D Projects 2B08021 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000290511500022 DOI 10.1021/ma200502t Annotation We studied a structure of polymeric composite based on spontaneous precipitation of sodium [3-cobalt(III) bis(1,2-dicarbollide)], NaCoD, with poly-(ethylene oxide), PEO, in salted aqueous solutions. Although the solid nanocomposite, which can be considered as a homogeneous matter, cannot form monocrystals due to the high flexibility of PEO chains, we can characterize the PEO/NaCoD structure by means of solid state NMR spectroscopy, from WAXS reflections and with help of already published structures of related systems. It indicates that the layered structure of solid NaCoD and the helical crystalline structure of PEO have disappeared after their mutual interaction. The NMR results clearly show that CoD_ anions are regularly dispersed within the PEO matrix, which consists of two distinct types of polymeric chains: one part interacting with dicarbollide clusters and the second one acting as a ligand of sodium counterions that also form regular pattern within the composite. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2012
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