Print Email Facebook Twitter Temporally programmed polymer – solvent interactions using a chemical reaction network Title Temporally programmed polymer – solvent interactions using a chemical reaction network Author Klemm, B. (TU Delft ChemE/Advanced Soft Matter) Lewis, R.W. (TU Delft ChemE/Advanced Soft Matter) Piergentili, I. (TU Delft ChemE/Advanced Soft Matter) Eelkema, R. (TU Delft ChemE/Advanced Soft Matter) Date 2022 Abstract Out of equilibrium operation of chemical reaction networks (CRNs) enables artificial materials to autonomously respond to their environment by activation and deactivation of intermolecular interactions. Generally, their activation can be driven by various chemical conversions, yet their deactivation to non-interacting building blocks remains largely limited to hydrolysis and internal pH change. To achieve control over deactivation, we present a new, modular CRN that enables reversible formation of positive charges on a tertiary amine substrate, which are removed using nucleophilic signals that control the deactivation kinetics. The modular nature of the CRN enables incorporation in diverse polymer materials, leading to a temporally programmed transition from collapsed and hydrophobic to solvated, hydrophilic polymer chains by controlling polymer-solvent interactions. Depending on the layout of the CRN, we can create stimuli-responsive or autonomously responding materials. This concept will not only offer new opportunities in molecular cargo delivery but also pave the way for next-generation interactive materials. To reference this document use: http://resolver.tudelft.nl/uuid:9f8d55e3-af45-481f-9d53-ddf3afbd559b DOI https://doi.org/10.1038/s41467-022-33810-y ISSN 2041-1723 Source Nature Communications, 13 (1) Part of collection Institutional Repository Document type journal article Rights © 2022 B. Klemm, R.W. Lewis, I. Piergentili, R. Eelkema Files PDF s41467_022_33810_y.pdf 7.33 MB Close viewer /islandora/object/uuid:9f8d55e3-af45-481f-9d53-ddf3afbd559b/datastream/OBJ/view