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Plasma modification of substrate with poly(methylhydrosiloxane) for enhancing the interfacial stability of PDMS/PAN composite membrane
Zhou, Hui1,2; Su, Yi1; Chen, Xiangrong1; Luo, Jianquan1,2; Tan, Sheng1,2; Wan, Yinhua1,2
2016-12-15
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume520Issue:DECPages:779-789
Abstract

This paper described a facile approach to improve the interfacial stability of poly(dimethylsiloxane)/polyacrylonitrile (PDMS/PAN) composite membranes mediated by poly(methylhydrosiloxane) (PMHS). The surface of PAN substrates was modified with PMHS by plasma treatment. The chemical structure and surface morphology of modified PAN substrates were characterized by ATR-IR, XPS, SEM, AFM and CA. The interfacial stability of composite membranes was estimated using the crosshatch tape adhesion test and the swelling experiment. The results showed that the composite membranes supported by modified PAN substrates exhibited high interfacial adhesion and the corresponding PDMS separation layer displayed quite low swelling degrees in toluene and n-heptane, due to the enhanced interfacial interaction. Such enhancement was produced by the stronger mechanical interlocking (increased surface roughness of substrate) and the presence of chemical bonding between PDMS layer and modified PAN substrate. Furthermore, these composite membranes showed good pervaporation performance with a separation factor about 4.2 and a high flux above 9.5 kg m(-2) h(-1) in the separation of azeotropic methanol/toluene mixture at 30 degrees C. This work demonstrated that plasma-induced immobilization of PMHS on PAN substrate was an efficient way to improve the interfacial stability of PDMS/PAN composite membrane without sacrifice of its pervaporation performance. (C) 2016 Elsevier B.V. All rights reserved.

KeywordPoly(Dimethylsiloxane) Composite Membrane Interfacial Stability Plasma Pervaporation
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.memsci.2016.08.039
Indexed BySCI
Language英语
WOS KeywordHOLLOW-FIBER MEMBRANES ; PERVAPORATION PERFORMANCE ; SURFACE MODIFICATION ; SEPARATION ; IMMOBILIZATION ; NANOFILTRATION ; MIXTURES ; SILICALITE-1 ; DEHYDRATION ; PARAMETERS
WOS Research AreaEngineering ; Polymer Science
WOS SubjectEngineering, Chemical ; Polymer Science
Funding OrganizationNational High Technology Research and Development Program of China(2012AA021202 ; National Natural Science Foundation of China, China(21176239) ; Chinese Academy of Sciences' Key Deployment Project(KSZD-EW-2-017-3) ; 2013AA065803)
WOS IDWOS:000384785000076
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21619
Collection生化工程国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Hui,Su, Yi,Chen, Xiangrong,et al. Plasma modification of substrate with poly(methylhydrosiloxane) for enhancing the interfacial stability of PDMS/PAN composite membrane[J]. JOURNAL OF MEMBRANE SCIENCE,2016,520(DEC):779-789.
APA Zhou, Hui,Su, Yi,Chen, Xiangrong,Luo, Jianquan,Tan, Sheng,&Wan, Yinhua.(2016).Plasma modification of substrate with poly(methylhydrosiloxane) for enhancing the interfacial stability of PDMS/PAN composite membrane.JOURNAL OF MEMBRANE SCIENCE,520(DEC),779-789.
MLA Zhou, Hui,et al."Plasma modification of substrate with poly(methylhydrosiloxane) for enhancing the interfacial stability of PDMS/PAN composite membrane".JOURNAL OF MEMBRANE SCIENCE 520.DEC(2016):779-789.
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