
Ionic liquids can transform glassy, stiff polymers into tough, stretchable glassy gels by increasing free volume and forming strong non-covalent crosslinks between polymer chains.


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Solvating polar polymers with ionic liquids at appropriate concentrations can produce a unique class of materials called glassy gels with desirable properties of both&nbsp;glasses and gels.

Glassy gels toughened by solvent - Nature

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Glassy Polymers Transformed into Tough, Stretchable Gels through Ionic Liquid Swelling
