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Article Dans Une Revue Polymer Chemistry Année : 2022

Taking advantage of β-hydroxy amine enhanced reactivity and functionality for the synthesis of dual covalent adaptable networks

Résumé

This study demonstrates the advantage of using β-hydroxy amine monomers for the synthesis of CANs. The increased reactivity of β-hydroxy amine towards the aza-Michael addition compared to their alkyl equivalents was highlighted by kinetic analyses coupled with rheological experiments. New catalyst-free covalent adaptable networks (CANs) were thus synthesized by poly aza-Michael addition using either β-hydroxy amine or its non-hydroxy analog. These CANs exhibit dynamic aza-Michael exchange under thermal stimulus. The synergistic effect of exchange reactions was highlighted by stress-relaxation and frequency sweep analyses. CANs were finally reshaped and their chemical and physical properties were compared to the initial ones.

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Polymères
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hal-03706971 , version 1 (28-06-2022)

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Dimitri Berne, Guilhem Coste, Roberto Morales-Cerrada, Marine Boursier, Julien Pinaud, et al.. Taking advantage of β-hydroxy amine enhanced reactivity and functionality for the synthesis of dual covalent adaptable networks. Polymer Chemistry, 2022, 13 (25), pp.3806. ⟨10.1039/d2py00274d⟩. ⟨hal-03706971⟩
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