Vybornyi, Mykhailo; Häner, Robert (11 September 2014). Diversity of morphological patterns in supramolecular polymers formed from the amphiphilic oligomers of pyrenes. In: Swiss Chemical Society Fall Meeting 2014. University of Zurich. 11.09.2014.
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Herein we demonstrate that a substitution type of the pyrene in short amphiphilic oligomers determines a morphology of the assemblies formed. Thus, 1.6- and 2.7-linkages lead to a formation of micrometer-sized 2D supromolecular polymers with a constant thickness 2 nm (pictures A and B). These assemblies possess a high degree of an internal order: the interior consists of hydrophobic pyrenes and alkyl chains, whereas the exterior exists as a net of hydrophilic negatively charged phosphates. Contrary, a 1.8-linkage exclusiveley leads to a formation of long nanometer thick helical supramolecular polymers (picturee C). These structures tend to form even more complex assemblies (bundles, superhelixes). Moreover, for all samples the polymerization process occurs via a nucleation-elongation mechanism. To study Py3 self-assembly, we carried out whole set of spectroscopic (UV/vis, fluorescence, DLS) and microscopic experiments (AFM).
Item Type: |
Conference or Workshop Item (Poster) |
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Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Vybornyi, Mykhailo, Häner, Robert |
Subjects: |
500 Science > 570 Life sciences; biology 500 Science > 540 Chemistry |
Language: |
English |
Submitter: |
Mykhailo Vybornyi |
Date Deposited: |
02 Oct 2014 14:29 |
Last Modified: |
05 Dec 2022 14:37 |
BORIS DOI: |
10.7892/boris.58922 |
URI: |
https://boris.unibe.ch/id/eprint/58922 |
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