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题名: Effects of sulfone/ketone in poly(phthalazinone ether sulfone ketone) on the gas permeation of their derived carbon membranes
作者: Wang, Tonghua1;  Zhang, Bing1, 2;  Qiu, Jieshan1;  Wu, Yonghong2;  Zhang, Shouhai3;  Cao, Yiming4
关键词: Molecular sieving ;  Microporous carbon ;  Stabilization ;  Pyrolysis ;  Gas separation
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2009-03-20
DOI: 10.1016/j.memsci.2009.01.006
卷: 330, 期:1-2, 页:319-325
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: A series of copolymer, poly(phthalazinone ether sulfone ketone)s (PPESKs) with the sulfone over ketone unit (S/K) ratio varying from 20/80, 50/50 to 80/20, were used as precursors to prepare carbon membranes. The effects of chemical structure as S/K ratio of PPESKs on the microstructure and gas separation performance of their derived carbon membranes were mainly investigated. The properties of PPESKs were detected in terms of density, fractional free volume, char yield, interlayer distance and glass transition temperature. During the formation process of carbon membranes (i.e., stabilization and pyrolysis), the changes in functional groups, microstructural parameters and gas permeation were monitored by FTIR, X-ray diffraction, TEM and single gas permeation techniques. The results have shown that the microstructure and gas permeation of obtained carbon membranes are significantly affected by the S/K ratio in precursor PPESKs. Carbon membranes exhibit higher selectivity and lower permeability when prepared at low pyrolytic temperature (i.e., 650 degrees C and 800 degrees C) and from PPESKs with S/K ratio equaling 50/50, followed with 20/80 and 80/20. As for carbon membranes prepared at high pyrolytic temperature (i.e., 950 degrees C), the selectivity order of them is well in accordance with S/K mole ratio in precursor PPESKs: 20/80>50/50>80/20, and vice versa for permeability. (C) 2009 Elsevier B.V. All rights reserved.
关键词[WOS]: SEPARATION MEMBRANES ;  PYROLYSIS CONDITIONS ;  AROMATIC POLYIMIDES ;  POLYMER MEMBRANES ;  DEGRADATION ;  MODEL
语种: 英语
WOS记录号: WOS:000264612500033
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141607
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, State Key Lab Fine Chem, Carbon Res Lab, Dept Mat Sci & Chem Engn,Sch Chem Engn, Dalian 116012, Liaoning, Peoples R China
2.Shenyang Univ Technol, Sch Petrochem Engn, Liaoyang 111003, Liaoning, Peoples R China
3.Dalian Univ Technol, Dept Polymer Sci & Mat, Dalian 116012, Liaoning, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Wang, Tonghua,Zhang, Bing,Qiu, Jieshan,et al. Effects of sulfone/ketone in poly(phthalazinone ether sulfone ketone) on the gas permeation of their derived carbon membranes[J]. JOURNAL OF MEMBRANE SCIENCE,2009,330(1-2):319-325.
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