Tailored Cyclic and Linear Polycarbosilazanes by Barium-Catalyzed N−H/H−Si Dehydrocoupling Reactions

Clément Bellini (1) , Clément Orione (2) , Jean-François Carpentier (1) , Yann Sarazin (1)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 CRMPO - Centre Régional de Mesures Physiques de l'Ouest

Ba[CH(SiMe3)2]2(THF)3 catalyzes the fast and controlled dehydrogenative polymerization of Ph2SiH2 and p-xylylenediamine to afford polycarbosilazanes. The structure (cyclic versus linear; end-groups) and molecular weight of the macromolecules can be tuned by adjusting the Ph2SiH2/diamine feed ratio. A detailed analysis of the resulting materials (mol. wt up to ca. 10 000 g mol−1) is provided.

Mots clés: Silane; Polymere; Dehydrierende Kreuzkupplungen; Barium; Amine

Domaines: Chimie

Clément Bellini, Clément Orione, Jean-François Carpentier, Yann Sarazin. Tailored Cyclic and Linear Polycarbosilazanes by Barium-Catalyzed N−H/H−Si Dehydrocoupling Reactions. Angewandte Chemie International Edition, 2016, 55 (11), pp.3744 - 3748. ⟨10.1002/anie.201511342⟩. ⟨hal-01274835⟩