TY - JOUR
T1 - Fe/Zn double metal cyanide catalyzed ring-opening polymerization of propylene oxide
T2 - 2. Characterization of active structure of double metal cyanide catalysts
AU - Chen, Su
AU - Chen, Li
PY - 2004/7
Y1 - 2004/7
N2 - Double metal cyanide (DMC) complexes based on Zn3[Fe(CN 6]2 were synthesized using different molar ratios of ZnCl2 to K3[Fe(CN)6] and special complexing agents. IR spectroscopy, electron spectroscopy for chemical analysis, X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and other analytical techniques were employed to characterize these catalysts. The morphology and structure of these DMC catalysts were attributed to the different complexing agents as well as to the different molar ratios of ZnCl2 to K3[Fe(CN)6]. In addition, the catalytic activity was strongly correlated with the morphology and noncrystalline content of DMC catalysts. High-activity catalysts could be prepared by controlling the structure of DMC catalysts by incorporating complexing agents. The active species of DMC catalysts for ring-opening polymerization are Zn2+, [Fe(CN)6]3-, Cl-, and the compound of their ligands.
AB - Double metal cyanide (DMC) complexes based on Zn3[Fe(CN 6]2 were synthesized using different molar ratios of ZnCl2 to K3[Fe(CN)6] and special complexing agents. IR spectroscopy, electron spectroscopy for chemical analysis, X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and other analytical techniques were employed to characterize these catalysts. The morphology and structure of these DMC catalysts were attributed to the different complexing agents as well as to the different molar ratios of ZnCl2 to K3[Fe(CN)6]. In addition, the catalytic activity was strongly correlated with the morphology and noncrystalline content of DMC catalysts. High-activity catalysts could be prepared by controlling the structure of DMC catalysts by incorporating complexing agents. The active species of DMC catalysts for ring-opening polymerization are Zn2+, [Fe(CN)6]3-, Cl-, and the compound of their ligands.
KW - Catalytic activity
KW - Characterization
KW - Double metal cyanide complex
KW - Ring-opening polymerization
UR - http://www.scopus.com/inward/record.url?scp=4043106427&partnerID=8YFLogxK
U2 - 10.1007/s00396-003-1030-y
DO - 10.1007/s00396-003-1030-y
M3 - 文章
AN - SCOPUS:4043106427
SN - 0303-402X
VL - 282
SP - 1033
EP - 1038
JO - Colloid and Polymer Science
JF - Colloid and Polymer Science
IS - 9
ER -