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2003•Chinese Journal of ChemistryRequires access

Ring‐opening polymerization of ε‐caprolactone by lanthanide tris (2, 6‐dimethylphenolate) s

Li‐Fang Zhang, Zhiquan Shen, Cui‐Ping Yu

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Abstract

Abstract Lanthanide tris (2,6‐dimethylphenolate)s [Ln(ODMP)3] were used as initiators for ring‐opening polymerization of s‐caprolactone (CL) for the first time. The influence of different rare earth elements and solvents was investigated. 1H NMR spectral data of polycaprolactone (PCL) obtained showed that the polymerization mechanism is in agreement with the coordination‐insertion mechanism and the selective cleavage of the acyl‐oxygen bond of CL.

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What this paper is about

Abstract Lanthanide tris (2,6‐dimethylphenolate)s [Ln(ODMP)3] were used as initiators for ring‐opening polymerization of s‐caprolactone (CL) for the first time. The influence of different rare earth elements and solvents was investigated. 1H NMR spectral data of polycaprolactone (PCL) obtained showed that the polymerization mechanism is in agreement with the coordination‐insertion mechanism and the selective cleavage of the acyl‐oxygen bond of CL.

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Available abstract

Abstract Lanthanide tris (2,6‐dimethylphenolate)s [Ln(ODMP)3] were used as initiators for ring‐opening polymerization of s‐caprolactone (CL) for the first time. The influence of different rare earth elements and solvents was investigated. 1H NMR spectral data of polycaprolactone (PCL) obtained showed that the polymerization mechanism is in agreement with the coordination‐insertion mechanism and the selective cleavage of the acyl‐oxygen bond of CL.

Key concepts: Chemistry, Lanthanide, Polymerization, Caprolactone, Polycaprolactone, Ring-opening polymerization, Polymer chemistry, Tris

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