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Hydrolysis of polycarbonate (PC) was studied using ionic liquid 1-butyl-3-methylimidazolium acetate ([Bmim][Ac]) as a catalyst. The influences of temperature, time, water dosage and [Bmim][Ac] dosage on the hydrolysis reaction were examined. Under the conditions of temperature 140°C, reaction time 3.0 h, m([Bmim][Ac]):m(PC)=1.5:1 and m(H(2)O):m(PC)=0.35:1, the conversion of PC was nearly 100% and the yield of bisphenol A (BPA) was over 96%. The ionic liquid could be reused up to 6 times without apparent decrease in the conversion of PC and yield of BPA. The kinetics of the reaction was also investigated. The results showed that the hydrolysis of PC in [Bmim][Ac] was a first-order kinetic reaction with an activation energy of 228 kJ/mol. Copyright © 2012 Elsevier B.V. All rights reserved.


Xiuyan Song, Fusheng Liu, Lei Li, Xuequn Yang, Shitao Yu, Xiaoping Ge. Hydrolysis of polycarbonate catalyzed by ionic liquid [Bmim][Ac]. Journal of hazardous materials. 2013 Jan 15;244-245:204-8

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PMID: 23246956

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