Počet záznamů: 1
Polynorbornene-based polyelectrolytes with covalently attached metallacarboranes: synthesis, characterization, and lithium-ion mobility
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SYSNO ASEP 0544115 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Polynorbornene-based polyelectrolytes with covalently attached metallacarboranes: synthesis, characterization, and lithium-ion mobility Tvůrce(i) Li, J. (CZ)
Fernandez-Alvarez, R. (CZ)
Tošner, Z. (CZ)
Kozlík, P. (CZ)
Štěpánek, M. (CZ)
Zhigunov, Alexander (UMCH-V) RID, ORCID
Urbanová, Martina (UMCH-V) RID, ORCID
Brus, Jiří (UMCH-V) RID, ORCID
Uchman, M. (CZ)
Matějíček, P. (CZ)Zdroj.dok. Macromolecules. - : American Chemical Society - ISSN 0024-9297
Roč. 54, č. 14 (2021), s. 6867-6877Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova polynorbornene-based polyelectrolytes ; metallacarboranes ; lithium-ion mobility Vědní obor RIV CD - Makromolekulární chemie Obor OECD Polymer science CEP GA20-01233S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000679398200025 EID SCOPUS 85110117139 DOI 10.1021/acs.macromol.1c00350 Anotace Metallacarborane clusters, such as COSAN, belong to surface-active and low-coordinating nanosized anions. Therefore, they have been used as separate building blocks in self- and co-assembly. As a step forward, we synthesized via ring-opening metathesis polymerization a novel polyelectrolyte, poly(norbornene-COSAN), PNC, with metallacarborane anions covalently attached to a polynorbornene backbone. The resulting PNC, with the degree of polymerization around 120, is soluble in polar organic solvents, and it can be deposited on a substrate as separate polymer chains or as multichain aggregates, with the bundle-of-fibril patterning. PNC is miscible with polyethylene oxide (PEO), forming the PNC/PEO composite. As shown by solid-state nuclear magnetic resonance spectroscopy, Li+ counterions are firmly coordinated in the PNC matrix, exhibiting rather restricted dynamics. In contrast, the mixing of PNC with PEO leads to a substantial increase of Li+ dynamics. As the result, the mobility of Li+ in the PNC/PEO composite remains almost unrestrained, which makes the COSAN-containing polyelectrolytes promising candidates for ion-conducting materials. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2022 Elektronická adresa https://pubs.acs.org/doi/10.1021/acs.macromol.1c00350
Počet záznamů: 1