Bis(salicylaldehydato)dioxomolybdenum complexes: catalysis for ring-opening polymerization

被引：5

作者：

Maruta, Yasumi ^{[1
]}

Abiko, Atsushi ^{[1
]}

机构：

[1] Kyoto Inst Technol, Grad Sch Sci & Technol, Dept Biobased Mat Sci, Sakyo Ku, Kyoto 6068585, Japan

来源：

POLYMER BULLETIN | 2014年 / 71卷 / 06期

关键词：

Ring-opening polymerization; Polyesters; Catalysts; epsilon-Caprolactone; Molybdenum; Bis-(salicylaldehydato)dioxomolybdenum complex; DIOXOMOLYBDENUM(VI) COMPLEXES; METAL-COMPLEXES; CYCLIC ESTERS; LACTONES;

D O I：

10.1007/s00289-014-1133-2

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Bis-(salicylaldehydato)dioxomolybdenum complexes show excellent catalytic activity for the ring-opening polymerization of epsilon-caprolactone. Of the tested, the bis-(5-methoxysalicylaldehydato)dioxomolybdenum complex exhibited the highest reactivity. With 0.0005 mol% catalyst, the ring-opening polymerization was complete within 3 h at 130 A degrees C. The turnover frequency of the reaction was calculated to be 23,000 and 67,000 mol h(-1) at 110 and 130 A degrees C, respectively. After an induction period, the reaction proceeds in a living manner, following first-order reaction kinetics.

引用

页码：1433 / 1440

页数：8

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