Enhancement of metallo-supramolecular dissociation kinetics in telechelic terpyridine-capped poly(ethylene glycol) assemblies in the semi-dilute regime
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Willi Schmolke
- Mostafa Ahmadi
- Sebastian Seiffert
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000486175400073&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1039/c9cp03911b
- eISSN
- 1463-9084
- Externe Identifier
- Clarivate Analytics Document Solution ID: IY1TU
- PubMed Identifier: 31465047
- ISSN
- 1463-9076
- Ausgabe der Veröffentlichung
- 35
- Zeitschrift
- PHYSICAL CHEMISTRY CHEMICAL PHYSICS
- Paginierung
- 19623 - 19638
- Datum der Veröffentlichung
- 2019
- Status
- Published
- Titel
- Enhancement of metallo-supramolecular dissociation kinetics in telechelic terpyridine-capped poly(ethylene glycol) assemblies in the semi-dilute regime
- Sub types
- Article
- Ausgabe der Zeitschrift
- 21
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Abstract
- <p>Transient linear telechelic polymers can show fast-breaking renormalized bond lifetimes in semidilute solution without substantial topological constraint.</p>
- Autoren
- Willi Schmolke
- Mostafa Ahmadi
- Sebastian Seiffert
- DOI
- 10.1039/c9cp03911b
- eISSN
- 1463-9084
- ISSN
- 1463-9076
- Ausgabe der Veröffentlichung
- 35
- Zeitschrift
- Physical Chemistry Chemical Physics
- Sprache
- en
- Online publication date
- 2019
- Paginierung
- 19623 - 19638
- Status
- Published online
- Herausgeber
- Royal Society of Chemistry (RSC)
- Herausgeber URL
- http://dx.doi.org/10.1039/c9cp03911b
- Datum der Datenerfassung
- 2024
- Titel
- Enhancement of metallo-supramolecular dissociation kinetics in telechelic terpyridine-capped poly(ethylene glycol) assemblies in the semi-dilute regime
- Ausgabe der Zeitschrift
- 21
Datenquelle: Crossref
- Abstract
- The dynamics of supramolecular polymer assemblies is governed by that of their polymeric building blocks and that of the transient bonds between them. Entrapment of such bonds by topological crowding often causes renormalization of the bond lifetimes towards prolonging. In the present study, by contrast, we show that this effect can also be inverse in the case of telechelic metallo-supramolecular polymers in semi-dilute solution. We focus on linear poly(ethylene glycols) capped by terpyridine binding motifs at both ends that can form metal-ligand coordinative bonds with various transition metal ions, thereby creating transient metallo-supramolecular assemblies of varying length and binding strength. Oscillatory shear rheology measurements along with theoretical modelling of the mechanical spectra of these samples reveals a pronounced enhancement of the complex dissociation kinetics that is dependent on the length of the polymeric chain segment, with longer segments yielding faster dissociation times up to six orders of magnitude shorter than described for the free complexes. This finding indicates that the dynamic activity of the polymer chain itself causes complex destabilization.
- Addresses
- Johannes Gutenberg-Universität Mainz, Institute of Physical Chemistry, Duesbergweg 10-14, D-55128 Mainz, Germany. sebastian.seiffert@uni-mainz.de.
- Autoren
- Willi Schmolke
- Mostafa Ahmadi
- Sebastian Seiffert
- DOI
- 10.1039/c9cp03911b
- eISSN
- 1463-9084
- Externe Identifier
- PubMed Identifier: 31465047
- Funding acknowledgements
- Alexander von Humboldt-Stiftung: Georg Forster Fellowship
- Deutsche Forschungsgemeinschaft: SE 1888/7-1
- Open access
- false
- ISSN
- 1463-9076
- Ausgabe der Veröffentlichung
- 35
- Zeitschrift
- Physical chemistry chemical physics : PCCP
- Sprache
- eng
- Medium
- Print-Electronic
- Online publication date
- 2019
- Paginierung
- 19623 - 19638
- Datum der Veröffentlichung
- 2019
- Status
- Published
- Datum der Datenerfassung
- 2019
- Titel
- Enhancement of metallo-supramolecular dissociation kinetics in telechelic terpyridine-capped poly(ethylene glycol) assemblies in the semi-dilute regime.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 21
Datenquelle: Europe PubMed Central
- Abstract
- The dynamics of supramolecular polymer assemblies is governed by that of their polymeric building blocks and that of the transient bonds between them. Entrapment of such bonds by topological crowding often causes renormalization of the bond lifetimes towards prolonging. In the present study, by contrast, we show that this effect can also be inverse in the case of telechelic metallo-supramolecular polymers in semi-dilute solution. We focus on linear poly(ethylene glycols) capped by terpyridine binding motifs at both ends that can form metal-ligand coordinative bonds with various transition metal ions, thereby creating transient metallo-supramolecular assemblies of varying length and binding strength. Oscillatory shear rheology measurements along with theoretical modelling of the mechanical spectra of these samples reveals a pronounced enhancement of the complex dissociation kinetics that is dependent on the length of the polymeric chain segment, with longer segments yielding faster dissociation times up to six orders of magnitude shorter than described for the free complexes. This finding indicates that the dynamic activity of the polymer chain itself causes complex destabilization.
- Autoren
- Willi Schmolke
- Mostafa Ahmadi
- Sebastian Seiffert
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/31465047
- DOI
- 10.1039/c9cp03911b
- eISSN
- 1463-9084
- Ausgabe der Veröffentlichung
- 35
- Zeitschrift
- Phys Chem Chem Phys
- Sprache
- eng
- Country
- England
- Paginierung
- 19623 - 19638
- Datum der Veröffentlichung
- 2019
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2019
- Titel
- Enhancement of metallo-supramolecular dissociation kinetics in telechelic terpyridine-capped poly(ethylene glycol) assemblies in the semi-dilute regime.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 21
Datenquelle: PubMed
- Beziehungen:
- Eigentum von