Formation and structural evolution of biphenyl polyamide thin film on hollow fiber membrane during interfacial polymerization

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dc.contributor.authorLiu Y.
dc.contributor.authorHe B.
dc.contributor.authorLi J.
dc.contributor.authorSanderson R.D.
dc.contributor.authorLi L.
dc.contributor.authorZhang S.
dc.date.accessioned2011-05-15T15:59:40Z
dc.date.available2011-05-15T15:59:40Z
dc.date.issued2011
dc.description.abstractA novel reverse osmosis hollow fiber membrane was prepared by interfacial polymerization from 3,3',5,5'-biphenyl tetraacyl chloride and m-phenylenediamine on a polysulfone hollow fiber membrane. The structural evolution of biphenyl polyamide thin film during interfacial polymerization was monitored by attenuated total reflectance infrared, X-ray photoelectron spectroscopy and atom force microscopy. The relationship between the structure and separation properties of the membranes was investigated. Results show that the biphenyl polyamide thin film had a three-layer structure: a loose initial layer with a low cross-linked structure, a dense middle layer with a high cross-linked structure and a loose surface layer with a low cross-linked structure. The dense middle layer had an intrinsic cross-linked structure with over 86.0% amide bonds (-CONH-) and below 14.0% carboxylic groups (-COOH), mainly responsible for separation. A growth model of the biphenyl polyamide thin film was proposed to describe the structural evolution process during interfacial polymerization. © 2011 Elsevier B.V.
dc.description.versionArticle
dc.identifier.citationJournal of Membrane Science
dc.identifier.citation373
dc.identifier.citation02-Jan
dc.identifier.issn3767388
dc.identifier.other10.1016/j.memsci.2011.02.045
dc.identifier.urihttp://hdl.handle.net/10019.1/11296
dc.titleFormation and structural evolution of biphenyl polyamide thin film on hollow fiber membrane during interfacial polymerization
dc.typeArticle
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