Abstract
A rare earth Schiff base complex: lanthanum tris(N-phenylethyl-3,5-di-t-butylsalicylaldiminato)s [La(OPEBS)3] was successfully applied as single component initiator for the ring-opening polymerization of 1,4-dioxan-2-one (PDO) in bulk. The influence of reaction conditions, such as polymerization temperature, the molar ratio of the monomer to initiator (M/I) on the monomer conversion and molecular weight of the polymer has been investigated. Poly(1,4-dioxan-2-one) with a viscosity-average molecular weight (Mv) of 8.29 × 104 and yield of 91.5% was prepared.
Published Version
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