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2893374 
Journal Article 
Transesterification Between Diphenyl Carbonate and 1,6-Hexandiol Catalyzed by Metal-Organic Frameworks Based on Zn2+ and Different Aromatic Carboxylic Acids 
Wang, L; Wang, G; Wang, Fan; Liu, P 
2013 
Yes 
Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 
25 
10 
5385-5389 
English 
WOS:000325093700021 
Metal-organic frameworks based on metal ion Zn>sup<2+>/sup< and different aromatic carboxylic acid ligands were prepared by the solvothermal method and characterized by X-ray diffraction and Fourier transform infrared spectroscopy. They were then used as the catalysts for the preparation of polycarbonate diol via the transesterification between diphenyl carbonate and 1,6-hexandiol. Their catalytic activities in the transesterification process were evaluated by the yield of phenol and their catalytic activities in the polycondensation process were determined by the number-average molecular weight (Mn) and the hydroxyl value. The experimental results show that metal-organic frameworks made from Zn>sup<2+>/sup< with benzene-1,4-dicarboxylic acid and benzene-1, 3, 5-tricarboxylic acid exhibit higher catalytic activities than metal-organic frameworks made from Zn>sup<2+>/sup< with benzene-1,3-dicarboxylic acid and benzene-1,2-dicarboxylic acid for the preparation of polycarbonate diol. 
Transesterification; Metal-organic frameworks; Aromatic carboxylic acid; Catalyst