Physical Hydrogels

Constantinos Tsitsilianis

Constantinos Tsitsilianis

Department of Chemical Engineering, University of Patras, Patras, Greece

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First published: 24 May 2013

Abstract

The present article concerns a special class of soft mater, namely physical hydrogels or self-assembling hydrogels. The best suited polymeric building elements for the creation of temporary networks are water-soluble segmented macromolecules bearing attractive groups, capable of developing physical bonds through intermolecular associations. The present article focuses on physical hydrogels formed by well-defined polymers, exhibiting the triblock topology. Hydrogels organized through jamming of nonconnected micellar entities, for example, diblock copolymers and surfactants, are not included. The self-organization of these associative polymeric species when dissolved in water results in complex fluids with intriguing rheological properties, attracting considerable interest in numerous applications as, for instance, in the fields of cosmetics, pharmaceutics, coatings, and biomedicine for tissue engineering and controlled drug delivery.

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