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Modification of silicalite-1 by vinyltrimethoxysilane (VTMS) and preparation of silicalite-1 filled polydimethylsiloxane (PDMS) hybrid pervaporation membranes
Zhou, Haoli1,2; Su, Yi1; Chen, Xiangrong1; Yi, Shouliang1; Wan, Yinhua1; Wan, YH
2010-11-20
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume75Issue:3Pages:286-294
AbstractIn preparation of inorganic particles filled polymer membranes, coupling agents can help to improve the compatibility between inorganic filler and polymer matrix. In this paper, surface modification of silicalite-1 was performed by a coupling agent, vinyltrimethoxysilane (VTMS), and hybrid pervaporation membranes were prepared by incorporating the unmodified or VTMS-modified silicalite-1 into polydimethylsiloxane (PDMS). The VTMS-modified silicalite-1 particles and hybrid membranes were characterized by FT-IR, (29)Si CP MAS NMR, DSC, TGA, XRD and SEM. The results showed that the coupling agent VTMS was readily grafted on the surface of silicalite-1 by hydrolysis reaction and condensation reaction, and the chemical linking between the -CH=CH(2) group on the surface-modified silicalite-1 and -Si-H on the PDMS substantially eliminated the nonselective voids inside the membrane. When used to separate acetone, butanol, ethanol (ABE) from aqueous solution, a higher selectivity was obtained with the VTMS-modified silicalite-1/PDMS hybrid membrane. Moreover, the surface modification of silicalite-1 improved its dispersion in PDMS and increased the maximal loading of silicalite-1 in membrane preparation, and thus further enhanced the separation factor of the membrane. (C) 2010 Elsevier B.V. All rights reserved.
KeywordPervaporation Silicalite Polydimethylsiloxane (Pdms) Vinyltrimethoxysilane (Vtms) Hybrid Membrane
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.seppur.2010.08.017
Indexed BySCI
Language英语
WOS KeywordMIXED MATRIX MEMBRANES ; AQUEOUS-ETHANOL SOLUTION ; SILANE COUPLING AGENTS ; POLY(VINYL ALCOHOL) ; ISOPROPANOL MIXTURES ; SURFACE MODIFICATION ; COMPOSITE MEMBRANES ; CHITOSAN MEMBRANES ; ZEOLITE MEMBRANE ; WATER-ADSORPTION
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000284453700007
Citation statistics
Cited Times:64[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5568
Collection生化工程国家重点实验室
Corresponding AuthorWan, YH
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Haoli,Su, Yi,Chen, Xiangrong,et al. Modification of silicalite-1 by vinyltrimethoxysilane (VTMS) and preparation of silicalite-1 filled polydimethylsiloxane (PDMS) hybrid pervaporation membranes[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2010,75(3):286-294.
APA Zhou, Haoli,Su, Yi,Chen, Xiangrong,Yi, Shouliang,Wan, Yinhua,&Wan, YH.(2010).Modification of silicalite-1 by vinyltrimethoxysilane (VTMS) and preparation of silicalite-1 filled polydimethylsiloxane (PDMS) hybrid pervaporation membranes.SEPARATION AND PURIFICATION TECHNOLOGY,75(3),286-294.
MLA Zhou, Haoli,et al."Modification of silicalite-1 by vinyltrimethoxysilane (VTMS) and preparation of silicalite-1 filled polydimethylsiloxane (PDMS) hybrid pervaporation membranes".SEPARATION AND PURIFICATION TECHNOLOGY 75.3(2010):286-294.
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