Chemically Fueled Autonomous Sol→Gel→Sol→Gel→Sol Transitions

Abstract: Complex non‐equilibrium phase behaviors are a hallmark of natural self‐assembling systems. Here we show how intricate phase transitions can be achieved through a chemically fueled reaction cycle to yield autonomous sol→gel→sol→gel→sol transitions. A relay of chemical transformations based on thiazinane metathesis leads to two consecutive transient gelations in a closed system. Within seconds of fuel addition to deactivated thiazinane monomers, an imine‐based hydrogel forms that consists of fibrillar microspheres. This gel quickly loses its mechanical strength and forms a solution, from which a second aldehyde‐based gel nucleates and remains stable for over one day. Overall, our reaction cycle gives rise to two consecutive re‐entrant phase transitions without any experimental intervention.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Chemically Fueled Autonomous Sol→Gel→Sol→Gel→Sol Transitions ; day:26 ; month:04 ; year:2023 ; extent:6 ; Angewandte Chemie / International edition. International edition ; (26.04.2023) (gesamt 6)

Contributors, Places and Time

• Creator: Hermans, Thomas M. ; Singh, Nishant

Further information

• DOI: 10.1002/anie.202301529
• URN: urn:nbn:de:101:1-2023042715164901644474
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:50 AM CEST