Controlling Syneresis of Hydrogels Using Organic Salts

Supramolecular hydrogels can spontaneously undergo syneresis through fibre–fibre interactions and expel significant amounts of water upon aging. In this process, the hydrophobicity of fibres which regulates the 3D‐rearrangement of the self‐assembled structures during syneresis is important. Here, we...

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Published inAngewandte Chemie International Edition Vol. 61; no. 4; pp. e202115021 - n/a
Main Authors Panja, Santanu, Dietrich, Bart, Adams, Dave J.
Format Journal Article
LanguageEnglish
Published Germany Wiley Subscription Services, Inc 21.01.2022
John Wiley and Sons Inc
EditionInternational ed. in English
Subjects
Aging
Co-assembly
Communication
Communications
Fibers
Gels
Hydrogels
Hydrophobicity
Microenvironments
Multicomponent hydrogel
Organic salts
Phase transitions
Rheology
Salts
Syneresis
Multicomponent hydrogel
Rheology
Syneresis
Co-assembly
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Summary:Supramolecular hydrogels can spontaneously undergo syneresis through fibre–fibre interactions and expel significant amounts of water upon aging. In this process, the hydrophobicity of fibres which regulates the 3D‐rearrangement of the self‐assembled structures during syneresis is important. Here, we show that we can control the hydrophobic microenvironment of gels by incorporating organic salts into the co‐assembled gel fibres thereby enabling control of the macroscopic gel volume phase transition. For self‐shrinkable hydrogels, syneresis can be controlled by tuning the hydrophobic microenvironment within the gel network involving co‐assembly with organic salts.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1433-7851
1521-3773
1521-3773
DOI:10.1002/anie.202115021