Depolymerization of poly(ethylene naphthalate) in fused silica capillary reactor and autoclave reactor from 240 to 280 degrees C in subcritical water
Bei, Ke1; Ma, Peixia1; Wang, Junliang1; Li, Kai1; Lyu, Jinghui1; Hu, Zhichao1; Chou, I-Ming2; Pan, Zhiyan1; *; Pan, Zhiyan(Zhejiang Univ Technol, Dept Environm Engn, Hangzhou 310032, Zhejiang, Peoples R China)
2017-12-01
发表期刊POLYMER ENGINEERING AND SCIENCE
卷号57期号:12页码:1382-1388
产权排序第1完成单位 ; 第2完成单位
摘要Depolymerization of poly(ethylene naphthalate) (PEN) in subcritical water was performed in a fused silica capillary reactor (FSCR) and an autoclave reactor. The phase behaviors of PEN in water during the heating-cooling process in the FSCR were observed under microscope and images were captured by digital camera. Reaction conditions for PEN hydrolysis in the autoclave reactor were chosen based on the experimental results obtained from the FSCR. Under autogenous pressures in the autoclave reactor, the effects of the water/PEN mass ratio (8.0 g/1.0 g to 16.0 g/1.0 g), reaction temperature (240-280 degrees C) and reaction time (5-60 min) on the depolymerization yield and products yields were investigated. The main products of depolymerization were identified and quantified as 2,6-naphthalene dicarboxylic acid (2,6-NDA) and ethylene glycol (EG). PEN was completely depolymerized at 260 degrees C in 60 min with an optimal water/PEN mass ratio of 12.0 g/1.0 g (12:1). The yields of 2,6-NDA and EG were optimized to 83.1% and 79.7%, respectively. Reaction kinetics analysis showed that the PEN depolymerization in subcritical water was first-order and the activation energy was 95 kJ mol(-1). Additionally, a reaction pathway was proposed based on the experimental results. POLYM. ENG. SCI., 57:1382-1388, 2017. (c) 2017 Society of Plastics Engineers
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1002/pen.24523
URL查看原文
收录类别SCI
语种英语
关键词[WOS]HOT COMPRESSED WATER ; SUPERCRITICAL METHANOL ; POLYETHYLENE TEREPHTHALATE ; POLY(BUTYLENE TEREPHTHALATE) ; PHTHALIC-ANHYDRIDE ; HIGH-TEMPERATURE ; ETHYLENE-GLYCOL ; POLY(TRIMETHYLENE TEREPHTHALATE) ; HYDROLYTIC DEPOLYMERIZATION ; PHASE-BEHAVIOR
WOS类目Engineering, Chemical ; Polymer Science
WOS记录号WOS:000417474400013
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文献类型期刊论文
版本出版稿
条目标识符http://ir.idsse.ac.cn/handle/183446/5266
专题深海科学研究部_深海极端环境模拟研究实验室
通讯作者Pan, Zhiyan; *; Pan, Zhiyan(Zhejiang Univ Technol, Dept Environm Engn, Hangzhou 310032, Zhejiang, Peoples R China)
作者单位1.Zhejiang Univ Technol, Dept Environm Engn, Hangzhou 310032, Zhejiang, Peoples R China
2.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Peoples R China
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Bei, Ke,Ma, Peixia,Wang, Junliang,et al. Depolymerization of poly(ethylene naphthalate) in fused silica capillary reactor and autoclave reactor from 240 to 280 degrees C in subcritical water[J]. POLYMER ENGINEERING AND SCIENCE,2017,57(12):1382-1388.
APA Bei, Ke.,Ma, Peixia.,Wang, Junliang.,Li, Kai.,Lyu, Jinghui.,...&Pan, Zhiyan.(2017).Depolymerization of poly(ethylene naphthalate) in fused silica capillary reactor and autoclave reactor from 240 to 280 degrees C in subcritical water.POLYMER ENGINEERING AND SCIENCE,57(12),1382-1388.
MLA Bei, Ke,et al."Depolymerization of poly(ethylene naphthalate) in fused silica capillary reactor and autoclave reactor from 240 to 280 degrees C in subcritical water".POLYMER ENGINEERING AND SCIENCE 57.12(2017):1382-1388.
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