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Insight in chitosan aerogels derivatives - Application in catalysis

Abstract : Thanks to an aerogel formulation, an efficient heterogeneous modification of chitosan is described and offers the convenient covalent-functionalisation of primary amine of insoluble microspheres into secondary benzylic-amines with various functionalities. The SEC, XRD and textural analyses provided a better insight into the chitosan aerogels and showed that this synthetic process allows high substitution ratio (> 80%) without depressing the desirable properties of the well-defined chitosan macromolecular structure. As a proof of principle, original catalytic chitosan aerogels flanked by a phosphine-pendant were prepared and applied successfully in the heterogenous pallado-catalyzed allylic substitution reaction.
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Submitted on : Friday, August 21, 2020 - 1:22:36 PM
Last modification on : Saturday, June 25, 2022 - 9:56:04 AM
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Ronan Le Goff, Olivier Mahé, Ronan Le Coz-Botrel, Sylvie Malo, Jean-Michel Goupil, et al.. Insight in chitosan aerogels derivatives - Application in catalysis. Reactive and Functional Polymers, Elsevier, 2020, 146, pp.104393. ⟨10.1016/j.reactfunctpolym.2019.104393⟩. ⟨hal-02376706⟩



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