Ring‐opening polymerization and copolymerization of cyclic esters catalyzed by amidinate aluminum complexes |
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| Authors: | Danay Osorio Meléndez José A Castro‐Osma Agustín Lara‐Sánchez René S Rojas Antonio Otero |
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| Institution: | 1. Nucleus Millennium Chemical Processes and Catalysis (CPC), Laboratorio de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile;2. Universidad de Castilla‐La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica‐Centro de Innovación en Química Avanzada (ORFEO‐CINQA), Facultad de Farmacia, Albacete, Spain;3. Universidad de Castilla‐La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica‐Centro de Innovación en Química Avanzada (ORFEO‐CINQA), Facultad de Ciencias y Tecnologías Químicas, Ciudad Real, Spain |
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| Abstract: | A series of new alkyl mono‐ and bimetallic aluminum complexes supported by novel amidinate ligands has been prepared in very high yields. These complexes were fully characterized by spectroscopic methods. Alkyl aluminum complexes 1 – 6 were investigated as catalysts for the ring‐opening polymerization and copolymerization of ε‐caprolactone and L‐lactide. Under the optimal reaction conditions, complex 5 acts as an efficient single‐component initiator for the ring‐opening polymerization and copolymerization of cyclic esters to yield biodegradable polyester materials with narrow polydispersities. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017 , 55, 2397–2407 |
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| Keywords: | aluminum amidinates biopolymers catalysis polyesters |
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