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Synthesis of propylene carbonate and some dialkyl carbonates in the presence of bifunctional catalyst compositions
Author(s) -
Zhu Hong,
Chen LiBan,
Jiang YingYan
Publication year - 1996
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(199608)7:8<701::aid-pat563>3.0.co;2-o
Subject(s) - propylene carbonate , propylene oxide , ethylene carbonate , bifunctional , carbonate , transesterification , methanol , catalysis , dimethyl carbonate , organic chemistry , ethylene glycol , inorganic chemistry , butanol , methoxide , sodium methoxide , materials science , diethyl carbonate , chemistry , ethylene oxide , ethanol , electrolyte , polymer , electrode , copolymer
Abstract Poly(ethylene glycol)–potassium iodide complexes were found to have high catalytic activities in the esterification of propylene oxide and carbon dioxide under smooth experimental conditions. Furthermore, the complexes were combined with sodium methoxide to form bifunctional catalyst compositions sequentially for the above esterification, as well as the transesterification of the propylene carbonate formed in situ with some aliphatic alcohols, such as methanol, ethanol, propanol and butanol. It was found that the compositions were very effective, giving corresponding dialkyl carbonate, propylene carbonate and propylene glycol. It was noticed that the resulting dialkyl carbonate from n‐butanol was diisobutyl carbonate, instead of di‐n‐butyl carbonate.