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题名: Preparation and characterization of pervaporation membranes of ZSM-5 zeolite incorporated chitosan
作者: Liu Bingbing;  Cao Yiming;  Yuan Quan
关键词: ZSM-5 zeolite ;  chitosan ;  pervaporation ;  dimethyl carbonate ;  methanol
刊名: ACTA POLYMERICA SINICA
发表日期: 2007-07-01
期: 7, 页:599-603
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Polymer Science
研究领域[WOS]: Polymer Science
英文摘要: ZSM-5 zeolite-incorporated chitosan membranes were prepared by the solution blending method. The membranes were characterized with scanning electron microscopy (SEM) to assess their surface morphology. The results showed that zeolite was uniformly distributed in the membrane matrix and the membranes were free of possible defects. Sorption studies indicated that the degree of swelling increased with the zeolite content, increasing, and the separation selectivity of dimethyl carbonate (DMC)/methanol mixtures was dominated by solubility selectivity rather than diffusivity selectivity. Finally, the effects of zeolite content and operating temperature on pervaporation properties were investigated. With increasing the zeolite content,the permeation flux of the membranes increased significantly. From the temperature-dependent permeation values, the Arrhenius activation parameters were estimated. The pervaporation results indicated that the membranes incorporated with the ZSM-5 zeolite exhibited better separation proper-ties for DMC/methanol mixtures comparing with homogeneous chitosan membranes.
关键词[WOS]: POLY(VINYL ALCOHOL) MEMBRANES ;  PDMS MEMBRANES ;  SEPARATION ;  PARAMETERS
语种: 英语
WOS记录号: WOS:000248417900002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140695
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.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Liu Bingbing,Cao Yiming,Yuan Quan. Preparation and characterization of pervaporation membranes of ZSM-5 zeolite incorporated chitosan[J]. ACTA POLYMERICA SINICA,2007(7):599-603.
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