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From molecular architecture and electrostatic interactions to underwater adherence of hydrogels

Abstract : This work attempts to unravel some of the intricacies of the aqueous adhesion of elastic or viscoelastic highly swollen charged polymers. In Part I the first model synthetic system permitted us to successfully link the molecular architecture of the elastic hydrogels, their interfacial charge density and the ionic strength of the medium with the underwater adhesion properties at a macroscopic level using probe-tack experiments and a microscopic level using atomic force microscopy. In Part II we successfully expanded the synthetic elastic system to measure macroscopic adhesion between oppositely charged gelatin-based hydrogels. Finally, in Part III we developed a synthetic and bio-inspired adhesive based on complex coacervation. This novel adhesive system combines the contribution of electrostatic interactions and thermoresponsive domains resulting in a material with promising properties as an injectable viscoelastic adhesive for medical applications.
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Submitted on : Thursday, October 15, 2020 - 2:49:07 PM
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  • HAL Id : tel-02968194, version 1

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Francisco Javier Cedano Serrano. From molecular architecture and electrostatic interactions to underwater adherence of hydrogels. Polymers. Sorbonne Université, 2019. English. ⟨NNT : 2019SORUS056⟩. ⟨tel-02968194⟩

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