| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Voets, Ilja
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Freezing-mediated formation of supraproteins using depletion forcescitations
- 2022Switchable Electrostatically Templated Polymerizationcitations
- 2021Single Enzyme Nanoparticles with Improved Biocatalytic Activity through Protein Entrapment in a Surfactant Shellcitations
- 2020Bioinspired Scaffolding by Supramolecular Amines Allows the Formation of One- and Two-Dimensional Silica Superstructurescitations
- 2018Supramolecular block copolymers under thermodynamic controlcitations
- 2015The coil-to-globule transition of single-chain polymeric nanoparticles with a chiral internal secondary structurecitations
- 2014Folding polymers with pendant hydrogen bonding motifs in water : the effect of polymer length and concentration on the shape and size of single-chain polymeric nanoparticlescitations
- 2013Sticky Supramolecular Grafts Stretch Single Polymer Chainscitations
- 2008Synthesis of novel well-defined poly(vinyl acetate)-b-poly(acrylonitrile) and derivatized water-soluble poly(vinyl alcohol)-b-poly(acrylic acid) block copolymers by cobalt-mediated radical polymerizationcitations
Places of action
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article
Sticky Supramolecular Grafts Stretch Single Polymer Chains
Abstract
The folding of single polymeric chains into single chain polymeric nanoparticles (SCPNs) is a unique strategy to prepare ordered structures at the nanoscopic level. Structure forming elements are attached to a polymer chain designed to fold it into a well-defined object, the SCPN. The self assembly of these units has been investigated in great detail. However, little is known about the impact of the resulting secondary structure on the conformation of the polymer chain. Here we employ a combination of scattering methods and spectroscopy to study how pendant chiral benzene-1,3,5-tricarboxamides (BTAs) fold oligo(ethylene glycol) methyl ether methacrylate-based polymers into SCPNs. Circular dichroism spectroscopy shows that the extent of BTA self assembly on the polymer chain in water can be fine-tuned by means of temperature and cosolvent addition (isopropanol). Small-angle neutron scattering experiments demonstrate that single polymer chains have an asymmetric shape with a constant cross section, R-cs, and variable length, L, with L > R-cs. The polymer chain extends and shortens in response to variations in temperature and solvent composition, which also influence the self assembly of the BTA units. The SCPNs stretch upon association and shrink upon disassociation of the grafted supramolecular moieties.