Influence of acetylation degree of cellulose acetate on pervaporation properties for MeOH/MTBE mixture

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	Influence of acetylation degree of cellulose acetate on pervaporation properties for MeOH/MTBE mixture
	Cao, SG; Shi, YQ; Chen, GW
刊名	JOURNAL OF MEMBRANE SCIENCE
	2000-01-17
卷号	165 期号:1 页码:89-97
关键词	Pervaporation Meoh/mtbe Mixture Acetylation Degree Cellulose Acetate Plasticization Effect
ISSN号	0376-7388
英文摘要	The pervaporation separation of the MeOH/MTBE mixture was performed with three cellulose acetate membranes under various feed compositions and operation temperatures. The results show that the acetylation degree has great influence on the pervaporation properties because the quantity of hydroxyl groups in the polymer matrix leads to different crystallinty degrees. The different extent of the plasticization effect resulted in membranes performing their special flux trend and selectivity over the range of feed compositions and caused the permeants to transport through the membrane in different diffusion modes under various operation temperatures. The IR sorption spectra evidenced that for membranes with different acetylation degrees there existed different sorption sites for penetrants and provided a proof for different pervaporation properties of the tested membranes. (C)2000 Elsevier Science B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000084766600008
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/76047]
专题	中国科学院化学研究所
通讯作者	Chen, GW
作者单位	Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Cao, SG,Shi, YQ,Chen, GW. Influence of acetylation degree of cellulose acetate on pervaporation properties for MeOH/MTBE mixture[J]. JOURNAL OF MEMBRANE SCIENCE,2000,165(1):89-97.
APA	Cao, SG,Shi, YQ,&Chen, GW.(2000).Influence of acetylation degree of cellulose acetate on pervaporation properties for MeOH/MTBE mixture.JOURNAL OF MEMBRANE SCIENCE,165(1),89-97.
MLA	Cao, SG,et al."Influence of acetylation degree of cellulose acetate on pervaporation properties for MeOH/MTBE mixture".JOURNAL OF MEMBRANE SCIENCE 165.1(2000):89-97.