Supramolecular block copolymers by kinetically controlled co-self-assembly of planar and core-twisted perylene bisimides
Zitieren Sie bitte immer diese URN: urn:nbn:de:bvb:20-opus-148657
- New synthetic methodologies for the formation of block copolymers have revolutionized polymer science within the last two decades. However, the formation of supramolecular block copolymers composed of alternating sequences of larger block segments has not been realized yet. Here we show by transmission electron microscopy (TEM), 2D NMR and optical spectroscopy that two different perylene bisimide dyes bearing either a flat (A) or a twisted (B) core self-assemble in water into supramolecular block copolymers with an alternating sequence ofNew synthetic methodologies for the formation of block copolymers have revolutionized polymer science within the last two decades. However, the formation of supramolecular block copolymers composed of alternating sequences of larger block segments has not been realized yet. Here we show by transmission electron microscopy (TEM), 2D NMR and optical spectroscopy that two different perylene bisimide dyes bearing either a flat (A) or a twisted (B) core self-assemble in water into supramolecular block copolymers with an alternating sequence of (A\(_{m}\)BB)\(_{n}\). The highly defined ultralong nanowire structure of these supramolecular copolymers is entirely different from those formed upon self-assembly of the individual counterparts, that is, stiff nanorods (A) and irregular nanoworms (B), respectively. Our studies further reveal that the as-formed supramolecular block copolymer constitutes a kinetic self-assembly product that transforms into thermodynamically more stable self-sorted homopolymers upon heating.…
Autor(en): | Daniel Görl, Xin Zhang, Vladimir Stepanenko, Frank WürthnerORCiDGND |
---|---|
URN: | urn:nbn:de:bvb:20-opus-148657 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Chemie und Pharmazie / Institut für Organische Chemie |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Nature Communications |
Erscheinungsjahr: | 2015 |
Band / Jahrgang: | 6 |
Heft / Ausgabe: | 7009 |
Originalveröffentlichung / Quelle: | Nature Communications 6:7009 (2015). DOI: 10.1038/ncomms8009 |
DOI: | https://doi.org/10.1038/ncomms8009 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 54 Chemie / 547 Organische Chemie |
Freie Schlagwort(e): | amplification; aqueous medium; association; cylindrical micelles; dyes; emission; fluorescent; organization; polymerization; water |
Datum der Freischaltung: | 15.11.2018 |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |