Depolymerization of poly(ethylene naphthalate) in fused silica capillary reactor and autoclave reactor from 240 to 280 degrees C in subcritical water

doi:10.1002/pen.24523

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海科学研究部 > 深海极端环境模拟研究实验室

	Depolymerization of poly(ethylene naphthalate) in fused silica capillary reactor and autoclave reactor from 240 to 280 degrees C in subcritical water
	Hu, Zhichao 2; Pan, Zhiyan(Zhejiang Univ Technol, Dept Environm Engn, Hangzhou 310032, Zhejiang, Peoples R China); ; Pan, Zhiyan 2; Chou, I-Ming*1 ; Lyu, Jinghui 2; Li, Kai 2; Wang, Junliang 2; Ma, Peixia 2; Bei, Ke 2
刊名	POLYMER ENGINEERING AND SCIENCE
	2017-12-01
卷号	57 期号:12 页码:1382-1388
DOI	10.1002/pen.24523
产权排序	第1完成单位 ; 第2完成单位
文献子类	Article
英文摘要	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
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WOS关键词	HOT COMPRESSED WATER ; SUPERCRITICAL METHANOL ; POLYETHYLENE TEREPHTHALATE ; POLY(BUTYLENE TEREPHTHALATE) ; PHTHALIC-ANHYDRIDE ; HIGH-TEMPERATURE ; ETHYLENE-GLYCOL ; POLY(TRIMETHYLENE TEREPHTHALATE) ; HYDROLYTIC DEPOLYMERIZATION ; PHASE-BEHAVIOR
语种	英语
WOS记录号	WOS:000417474400013
内容类型	期刊论文
版本	出版稿
源URL	[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(Zhejiang Univ Technol, Dept Environm Engn, Hangzhou 310032, Zhejiang, Peoples R China); *; Pan, Zhiyan
作者单位	1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Peoples R China 2.Zhejiang Univ Technol, Dept Environm Engn, Hangzhou 310032, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Hu, Zhichao,Pan, Zhiyan,*,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	Hu, Zhichao.,Pan, Zhiyan.,*.,Pan, Zhiyan.,Chou, I-Ming.,...&Bei, Ke.(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	Hu, Zhichao,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.