高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (1): 143.

• 研究论文 • 上一篇    下一篇

不同溶剂对聚醚砜酮基炭膜结构及气体分离性能的影响

庞婧1,王同华1,李琳1,祁文博1,张守海2,蹇锡高2   

  1. 1. 大连理工大学化工学院精细化工国家重点实验室, 大连 116012;
    2. 大连理工大学化工学院, 大连 116023
  • 收稿日期:2010-03-12 修回日期:2010-05-13 出版日期:2011-01-10 发布日期:2010-12-11
  • 通讯作者: 王同华 E-mail:wangth@chem.dlut.edu.cn
  • 基金资助:

    国家自然科学基金面上与重点项目(批准号: 20776024, 20976021, 20836006)和国家“八六三”计划项目(批准号: 2009AA03Z215)资助.

Effect of Different Solvents on Structure and Gas Properties of PPESK Carbon Membranes

PANG Jing1, WANG Tong-Hua1*, LI Lin1, QI Wen-Bo1, ZHANG Shou-Hai2, JIAN Xi-Gao2   

  1. 1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China;
    2. School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
  • Received:2010-03-12 Revised:2010-05-13 Online:2011-01-10 Published:2010-12-11
  • Contact: WANG Tong-Hua E-mail:wangth@chem.dlut.edu.cn
  • Supported by:

    国家自然科学基金面上与重点项目(批准号: 20776024, 20976021, 20836006)和国家“八六三”计划项目(批准号: 2009AA03Z215)资助.

摘要: 为考察不同溶剂对聚醚砜酮(PPESK)炭膜结构和性能的影响,以PPESK为前驱体,分别以NMP,CHCl3,C2H2Cl4,DMAc为溶剂制备气体分离炭膜。并采用红外光谱、热重分析、X射线衍射和气体渗透等测试手段对所制膜的化学结构、炭膜的微结构和气体的分离性能进行了表征。结果表明,溶剂的溶度参数、沸点、挥发性以及原膜中溶剂的含量等导致所制备聚合物膜形成不同的化学结构,改变它在预氧化和炭化过程的结构变化规律,使形成炭膜表现出不同的炭结构、孔隙结构和表观柔韧性,最终影响炭膜的气体渗透性和分离选择性。

关键词: 聚醚砜酮, 炭膜, 溶剂, 结构性能, 气体分离

Abstract: For the investigation of different solvents’ influence on structure and performance of PPESK carbon membranes, PPESK derived films for gas separation were prepared with NMP,CHCl3,DMAc and TCE. The chemical structure, microstructure and gas separation properties of these membranes were characterized by FTIR、TG、XRD and gas permeation tests. The result indicated that the main cause of gas permeation and selectiveity was the different carbon structure,pores and flexility of carbon membranes induced by the variation discipline during preoxidation and carbonization in consequence of solubility, boiling point, volatility and content of solvents.

Key words: Poly(phthalazinone ether sulfone ketone), carbon membrane, solvents, structural performance, gas separation

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