The influence of substituents on gelation and stacking order of oligoaramid - based supramolecular networks.
Soft Matter
; 15(36): 7250-7261, 2019 Sep 18.
Article
em En
| MEDLINE
| ID: mdl-31482923
ABSTRACT
Self-assembly has proven to be a powerful tool for functional, smart materials such as hydrogels derived from low molecular weight compounds. However, the targeted design of functional gelators remains difficult. Here, we present a set of four Y-shaped aromatic amide tetramers with varying functionalities able to undergo different non-covalent interactions. These compounds were explored towards their self-assembly behavior and hydrogel formation by experimental methods such as UV-vis spectroscopy, rheology, small angle X-ray scattering (SAXS), scanning/transmission electron, and atomic force microscopy. Additionally, we investigated the main mechanisms behind oligomer aggregation and the structure of the resulting supramolecular chains through full atomistic molecular dynamics simulations.
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MEDLINE
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En
Ano de publicação:
2019
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Article