Polymerization of ethylene oxide using yttrium isopropoxide

✍ Scribed by Young K. Choi; Willem M. Stevels; Marc J. K. Ankoné; Pieter J. Dijkstra; Sung W. Kim; Jan Feijen

• Book ID: 102483652
• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 305 KB
• Volume: 197
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1996.021971111

✦ Synopsis

Abstract

Well defined poly(ethylene oxide)s were prepared using yttrium isopropoxide as an initiator. End group analysis using ^1^H‐ and ^13^C NMR spectroscopy revealed that only polymers with isopropyl ether and hydroxyl end groups were produced. The molecular weight is controlled by the initial amount of initiator added and low polydispersity polymer (M~w~/M~n~ ≈ 1.1) was isolated. Sequential polymerization indicated the suitability of this initiator for macromolecular engineering.