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Preparation and Characterization of Double Metal Cyanide Complex Catalysts

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Author(s): Hanxia Liu | Xikui Wang | Yao Gu | Weilin Guo

Journal: Molecules
ISSN 1420-3049

Volume: 8;
Issue: 1;
Start page: 67;
Date: 2003;
Original page

Keywords: Double metal cyanide complex | Catalysts | Preparation | Additional complex ligand

ABSTRACT
A series of double metal cyanide (DMC) complex catalysts were prepared in two different methods by using ß-cyclodextrin, PEG-1000 and Tween-60 as an additional complex ligands respectively. It was showed that a mixture of crystalline and amorphous DMC was synthesized by using traditional method in which the additional complex ligand was added after the precipitation of DMC. Amorphous and dispersed DMC with higher activity could be obtained when the additional complex ligand was added in the reactant solution before reaction. The effect of additional complex ligand and preparation method on the crystalline state and catalytic property of DMC were also investigated.
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