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