|
2
|
Hauenschild T, Hinderberger D. A Platform of Phenol-Based Nitroxide Radicals as an “EPR Toolbox” in Supramolecular and Click Chemistry. Chempluschem 2018; 84:43-51. [DOI: 10.1002/cplu.201800429] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/15/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Till Hauenschild
- Martin Luther University Halle-Wittenberg; Institute of Chemistry Physical Chemistry - Complex Self-Organizing Systems; Von-Danckelmann-Platz 4 06120 Halle (Saale) Germany
| | - Dariush Hinderberger
- Martin Luther University Halle-Wittenberg; Institute of Chemistry Physical Chemistry - Complex Self-Organizing Systems; Von-Danckelmann-Platz 4 06120 Halle (Saale) Germany
| |
Collapse
|
|
3
|
Maltar-Strmečki N, Yu H, Messmer D, Zhang B, Schlüter AD, Hinderberger D. Exploring the Loading Capacity of Generation Six to Eight Dendronized Polymers in Aqueous Solution. Chemphyschem 2016; 17:2767-72. [PMID: 27273228 DOI: 10.1002/cphc.201600580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Indexed: 12/20/2022]
Abstract
Aspects of size, structural (im)perfection, inner density, and guest molecule loading capacity of dendronized polymers (DPs) of high generation (6≤g≤8) in aqueous solution are studied using electron paramagnetic resonance spectroscopy on amphiphilic, spin-labeled guest molecules. The results show that the interior of the charged DPs is strongly polar, especially in comparison to their lower generation (1-4) analogues. This is a direct sign that large amounts of water penetrate the DP surface, reflecting the structural (im)perfections of these high-generation DPs and much lower segmental densities than theoretically achievable. Images obtained with atomic force microscopy reveal that the high-generation DPs do not aggregate and give further insights into the structural imperfections. Electron paramagnetic resonance spectroscopic data further show that despite their structural imperfections, these DPs can bind and release large numbers of amphiphilic molecules. It is concluded that attention should be paid to their synthesis, for which a protocol needs to be developed that avoids the relatively large amount of defects generated in the direct conversion of a generation g=4 DP to a generation g=6 DP, which had to be used here.
Collapse
Affiliation(s)
- Nadica Maltar-Strmečki
- Martin-Luther-Universität Halle-Wittenberg, Institut für Chemie, Von-Danckelmann-Platz 4, 06120, Halle, Germany.,Ruđer Bošković Institute, Division of Physical Chemistry, Laboratory for Magnetic Resonance, Bijenička 54, 10000, Zagreb, Croatia
| | - Hao Yu
- ETH Zürich, Department of Materials, Laboratory of Polymer Chemistry, Vladimir-Prelog-Weg 5, 8093, Zürich, Switzerland.,University of Bern, Department of Chemistry and Biochemistry, Freiestrasse 3, 3012, Bern, Switzerland
| | - Daniel Messmer
- ETH Zürich, Department of Materials, Laboratory of Polymer Chemistry, Vladimir-Prelog-Weg 5, 8093, Zürich, Switzerland
| | - Baozhong Zhang
- ETH Zürich, Department of Materials, Laboratory of Polymer Chemistry, Vladimir-Prelog-Weg 5, 8093, Zürich, Switzerland.,Lund University, Centre of Analysis and Synthesis, P.O. Box 124, 22100, Lund, Sweden
| | - A Dieter Schlüter
- ETH Zürich, Department of Materials, Laboratory of Polymer Chemistry, Vladimir-Prelog-Weg 5, 8093, Zürich, Switzerland.
| | - Dariush Hinderberger
- Martin-Luther-Universität Halle-Wittenberg, Institut für Chemie, Von-Danckelmann-Platz 4, 06120, Halle, Germany.
| |
Collapse
|
|
4
|
Affiliation(s)
- Lianxiao Liu
- Laboratory of Polymer Chemistry; Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University; Nanchen Street 333, Materials Building Room 447 Shanghai 200444 China
| | - Wen Li
- Laboratory of Polymer Chemistry; Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University; Nanchen Street 333, Materials Building Room 447 Shanghai 200444 China
| | - Jiatao Yan
- Laboratory of Polymer Chemistry; Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University; Nanchen Street 333, Materials Building Room 447 Shanghai 200444 China
| | - Afang Zhang
- Laboratory of Polymer Chemistry; Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University; Nanchen Street 333, Materials Building Room 447 Shanghai 200444 China
| |
Collapse
|
|
5
|
Abstract
Supramolecular polymers from dendritic motifs combine the dynamic nature of supramolecular construction and inherent features from covalent dendronized polymers.
Collapse
Affiliation(s)
- Jiatao Yan
- Laboratory of Polymer Chemistry
- Department of Polymer Materials
- College of Materials Science and Engineering
- Shanghai University
- Shanghai 200444, China
| | - Wen Li
- Laboratory of Polymer Chemistry
- Department of Polymer Materials
- College of Materials Science and Engineering
- Shanghai University
- Shanghai 200444, China
| | - Afang Zhang
- Laboratory of Polymer Chemistry
- Department of Polymer Materials
- College of Materials Science and Engineering
- Shanghai University
- Shanghai 200444, China
| |
Collapse
|
|
6
|
Graf R, Hansen MR, Hinderberger D, Muennemann K, Spiess HW. Advanced magnetic resonance strategies for the elucidation of nanostructured soft matter. Phys Chem Chem Phys 2014; 16:9700-12. [DOI: 10.1039/c3cp54614d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|