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Title: Polymerization of ε-Caprolactone Using a Ruthenium(II) Mixed Metallocene Catalyst
Authors: Mendes, Paulo J.
Silva, Tiago JL
Tomaz, Ana Isabel
Garcia, M. Helena
Valente, Andreia
Editors: Afonso, Carlos A M
Candeias, Nuno R
Simão, Dulce Pereira
Trindade, Alexandre F
Coelho, Jaime A S
Tan, Bin
Franzen, Robert
Keywords: Polycaprolactone
Ring-opening polymerization
Ruthenium organometallic catalyst
Issue Date: 2017
Publisher: Royal Society of Chemistry
Citation: Polymerization of ε-Caprolactone Using a Ruthenium(II) Mixed Metallocene Catalyst, A. Valente, T.J.L. Silva, P.J. Mendes, A.I. Tomaz & M.H. Garcia em Comprehensive Organic Chemistry Experiments for the Laboratory Classroom, C.A.M. Afonso, N.R. Candeias, D. Pereira Simão, A.F. Trindade, J.A.S. Coelho, B. Tan & R. Franzén (Eds.), RSC Publications, Cambridge, 2017, Cap.16.5, pp.864-867 (ISBN 978-1-84973-963-4)
Abstract: Aliphatic polyesters, prepared by ring opening polymerization (ROP) of lactones, are versatile polymers with good mechanical properties, hydrolyzability, biocompatibility and biodegradabil- ity that make them quite suitable for medical and environmental applications. The objective of this work is the ROP of ε-caprolactone via the activated monomer mecha- nism (using isopropyl alcohol as an initiator and a ruthenium(ii) mixed metallocene catalyst).This polymerization is quantitative and occurs in a controlled manner, yielding a product with a dispersity (Đ) in the range 1.1–1.3. The ruthenium catalyst is exceptionally stable under the experimental conditions and can be recovered at the end of the reaction.
ISBN: 978-1-84973-963-4
Type: bookPart
Appears in Collections:QUI - Publicações - Capítulos de Livros
CQE - Publicações - Capítulos de Livros

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