Molecular Bottle Brushes with Positioned Selenols: Extending the Toolbox of Oxidative Single Polymer Chain Folding with Conformation Analysis by Atomic Force Microscopy
| Autor: | Emmanuelle Schué, Hans G. Börner, Alexey Kopyshev, Jean-François Lutz |
|---|---|
| Přispěvatelé: | Humboldt-Universität zu Berlin, Universität Potsdam, Institut Charles Sadron (ICS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Lutz, Jean-François, Humboldt University Of Berlin, University of Potsdam = Universität Potsdam, Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
[CHIM.POLY] Chemical Sciences/Polymers
Materials science Polymers and Plastics 010402 general chemistry 01 natural sciences chemistry.chemical_compound Materials Chemistry Side chain Molecule atomic force microscopy (AFM) Physical and Theoretical Chemistry grafted polymers diselenide chemistry.chemical_classification 010405 organic chemistry Selenol Polymer single chain folding 0104 chemical sciences Folding (chemistry) Crystallography [CHIM.POLY]Chemical Sciences/Polymers chemistry Intramolecular force molecular bottle brushes Heteronuclear single quantum coherence spectroscopy Macromolecule sequence-controlled polymers |
| Zdroj: | Journal of Polymer Science Part A: Polymer Chemistry Journal of Polymer Science Part A: Polymer Chemistry, Wiley, 2020, 58 (1), pp.154-162. ⟨10.1002/pola.29496⟩ Journal of Polymer Science Part A: Polymer Chemistry, 2020, 58 (1), pp.154-162. ⟨10.1002/pola.29496⟩ |
| ISSN: | 0887-624X 1099-0518 |
| DOI: | 10.1002/pola.29496⟩ |
| Popis: | International audience; A synthesis route to controlled and dynamic single polymer chain folding is reported. Sequence-controlled macromolecules containing precisely located selenol moieties within a polymer chain are synthesized. Oxidation of selenol functionalities lead to diselenide bridges and induces controlled intramolecular crosslinking to generate single chain collapse. The cyclization process is successfully characterized by SEC as well as by 1 H NMR and 2D HSQC NMR spectroscopies. In order to gain insight on the molecular level to reveal the degree of structural control, the folded polymers are transformed into folded molecular brushes that are known to be visualizable as single molecule structures by AFM. The "grafting onto" approach is performed by using triazolinedione−diene reaction to graft the side chain polymers. A series of folded molecular brushes as well as the corresponding linear controls are synthesized. AFM visualization is proving the cyclization of the folded backbone by showing globular objects, where non-folded brushes show typical worm-like structures. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|