Tunable hydrogen release from amine-boranes via their insertion into functional polystyrenes

Abstract : Polystyrene-g-boramines random copolymers are dihydrogen reservoirs with tunable dehydrogenation temperatures, which can be adjusted by selecting the boramine content in the copolymers. They display a unique dihydrogen thermal release profile, which is a direct consequence of the insertion of the amine-boranes in a polymeric scaffold, and not from a direct modification of the electronics or sterics of the amine-borane function. Finally, the mixture of polystyrene-g-boramines with conventional NH3-BH3 (borazane) allows for a direct access to organic/inorganic hybrid dihydrogen reservoirs with a maximal H2 loading of 8 wt%.
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Submitted on : Wednesday, August 7, 2019 - 11:26:46 AM
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Juliette Brunet, Audrey Ledoux, Emmanuel Lacôte, Jean Raynaud. Tunable hydrogen release from amine-boranes via their insertion into functional polystyrenes. Angewandte Chemie International Edition, Wiley-VCH Verlag, 2019, ⟨10.1002/anie.201904898⟩. ⟨hal-02264588⟩

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