Depolymerization of Poly(bisphenol A carbonate) in Subcritical and Supercritical Toluene

作     者：Zhi Yan PAN Zhen BAO Ying Xu CHEN 

作者机构：Department of Environmental Engineering Zhejiang University Hangzhou 310027 College of Biological and Environmental Engineering Zhejiang University of Technology Hangzhou 310032 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2006年第17卷第4期

页      面：545-548页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：浙江省自然科学基金(299014) 浙江省自然科学基金 

主　　题：Depolymerization poly(bisphenol A carbonate) supercritical toluene. 

摘      要：The depolymerization of poly（bisphenol A carbonate）（PC） in subcritical and supercritical toluene was studied. The experimental parameters, which influence the depolymerization reaction such as temperature （570-633 K）, pressure （4.0-7.0 MPa）, reaction time （5-60 min）, and toluene to PC weight ratio （3.0-11.0）, were investigated, and the reaction products were determined by CrC, GC/MS and FT-IR spectrometer. It was found that the main product of the depolymerization reaction was bisphenol A（BPA）. BPA accounted for over 55.7% of the depolymerization products at reaction temperature 613 K, pressure 5.0-6.0 MPa, reaction time 15 min and toluene/PC weight ratio of around 7.0.