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Donor-acceptor copolymers with 1,7-regioisomers of N,N′-dialkylperylene-3,4,9,10-tetracarboxydiimide as materials for photonics
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SYSNO ASEP 0512150 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Donor-acceptor copolymers with 1,7-regioisomers of N,N′-dialkylperylene-3,4,9,10-tetracarboxydiimide as materials for photonics Author(s) Cimrová, Věra (UMCH-V) RID, ORCID
Výprachtický, Drahomír (UMCH-V) RID, ORCID
Pokorná, Veronika (UMCH-V) RID
Babičová, Petra (UMCH-V) RIDSource Title Journal of Materials Chemistry C. - : Royal Society of Chemistry - ISSN 2050-7526
Roč. 7, č. 46 (2019), s. 14678-14692Number of pages 15 s. Language eng - English Country GB - United Kingdom Keywords donor-acceptor copolymers ; perylenetetracarboxydiimide acceptor units ; synthesis Subject RIV CD - Macromolecular Chemistry OECD category Polymer science R&D Projects GC18-14683J GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UMCH-V - RVO:61389013 UT WOS 000506638900027 EID SCOPUS 85075826442 DOI 10.1039/C9TC05233J Annotation Donor–acceptor (D–A) copolymers containing N,N′-dialkylperylene-3,4,9,10-tetracarboxydiimide electron-acceptor units with dodecyl (DDPDI) or 2-ethylhexyl (EHPDI) substituents and three different electron-donor units (9,9-dioctylfluorene, 9-(2-ethylhexyl)carbazole or 9-(heptadecan-9-yl)carbazole) were synthesized by Suzuki coupling and were then characterized. Their thermal, photophysical, electrochemical and spectroelectrochemical properties were studied. The effects of the alkyl side chain combination on the properties were evaluated and are discussed. Despite large differences in the absorption spectra of the individual DDPDI and EHPDI units or monomers in solutions and thin films, the absorption spectra of the copolymers in solutions and thin films exhibited similar shapes. More pronounced side chain effects were observed in the photoluminescent (PL) behaviour than in the absorption behaviour. Different alkyl side chains on the D–A copolymers similarly affected the visible absorption band contributions in the solutions and thin films, but the exhibited effects were different for the PL spectra and efficiency. The copolymers exhibited reversible reduction and irreversible oxidation. The ionization potential and bandgap values were influenced by the donor unit and by the perylene-3,4,9,10-tetracarboxydiimide (PDI) side chain nature. Spectroelectrochemical changes are reported, and potential sensing applications are outlined. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2020 Electronic address https://pubs.rsc.org/en/content/articlelanding/2019/TC/C9TC05233J#!divAbstract
Number of the records: 1