title: Tailored Cyclic and Linear Polycarbosilazanes by Barium-Catalyzed N-H/H-Si Dehydrocoupling Reactions.
abstract: Ba[CH(SiMe3 )2 ]2 (THF)3 catalyzes the fast and controlled dehydrogenative polymerization of Ph2 SiH2 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 Ph2 SiH2 /diamine feed ratio. A detailed analysis of the resulting materials (mol. wt up to ca. 10 000 g mol(-1) ) is provided.
authors.affiliation: Equipe OMC, Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS-Université de Rennes 1, Campus de Beaulieu, 263 avenue du Général Leclerc, 35042, Rennes Cedex, France.
authors.forename: Clément
authors.initials: C
authors.lastname: Bellini
authors.affiliation: CRMPO, Université de Rennes 1, Campus de Beaulieu, France.
authors.forename: Clément
authors.initials: C
authors.lastname: Orione
authors.affiliation: Equipe OMC, Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS-Université de Rennes 1, Campus de Beaulieu, 263 avenue du Général Leclerc, 35042, Rennes Cedex, France. jean-francois.carpentier@univ-rennes1.fr.
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Carpentier
authors.affiliation: Equipe OMC, Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS-Université de Rennes 1, Campus de Beaulieu, 263 avenue du Général Leclerc, 35042, Rennes Cedex, France. yann.sarazin@univ-rennes1.fr.
authors.forename: Yann
authors.identifier: http://orcid.org/0000-0003-1121-0292
authors.initials: Y
authors.lastname: Sarazin
mesh_terms: D001464:Barium / Q000737:chemistry*; D002384:Catalysis; D006859:Hydrogen / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry*; D066244:Proton Magnetic Resonance Spectroscopy; D012821:Silanes / Q000737:chemistry*
chemical_list: D012821:Silanes; D001464:Barium; D006859:Hydrogen; D009584:Nitrogen
keywords: amines; barium; cross-dehydrogenative coupling; polymers; silanes