期刊
PROGRESS IN ORGANIC COATINGS
卷 50, 期 4, 页码 269-272出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2004.03.003
关键词
double metal cyanide complexes; complexing agents; activity of DMC catalysts
Double metal cyanide (DMC) complexes are effective catalysts for the ring-opening polymerization of propylene oxide. These catalysts are highly active and especially useful in the synthesis of polyether polyols having low unsaturation. In this paper, a family of DMC catalysts were synthesized and developed by reaction of aqueous solution of zinc chloride and potassium hexacyanoferrate with complexing agents to form a precipitate of DMC compounds. For obtaining favorable catalyst activity, the organic complexing agents such as t-butanol and polyols were employed. The complexing agents were incorporated into the catalyst structure and were required for active catalyst. The catalytic activity of the DMC complexes was significantly dependent on the composition of catalysts, feeding way and morphology structure of the DMC catalysts. The analytical method of DMC catalysts activity was also revealed. (C) 2004 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据