https://scholars.lib.ntu.edu.tw/handle/123456789/410502
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Jean Y.C. | en_US |
dc.contributor.author | Hung W.-S. | en_US |
dc.contributor.author | Lo C.-H. | en_US |
dc.contributor.author | Chen H. | en_US |
dc.contributor.author | Liu G. | en_US |
dc.contributor.author | Chakka L. | en_US |
dc.contributor.author | Cheng M.-L. | en_US |
dc.contributor.author | Nanda D. | en_US |
dc.contributor.author | Tung K.-L. | en_US |
dc.contributor.author | Huang S.-H. | en_US |
dc.contributor.author | Lee K.-R. | en_US |
dc.contributor.author | Lai J.-Y. | en_US |
dc.contributor.author | Sun Y.-M. | en_US |
dc.contributor.author | Hu C.-C. | en_US |
dc.contributor.author | Yu C.-C. | en_US |
dc.creator | Yu C.-C.;Hu C.-C.;Sun Y.-M.;Lai J.-Y.;Lee K.-R.;Huang S.-H.;Nanda D.;Cheng M.-L.;Chakka L.;Liu G.;Chen H.;Lo C.-H.;Hung W.-S.;Jean Y.C.;Tung K.-L. | - |
dc.date.accessioned | 2019-05-24T10:02:12Z | - |
dc.date.available | 2019-05-24T10:02:12Z | - |
dc.date.issued | 2008 | - |
dc.identifier.issn | 00119164 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/410502 | - |
dc.description.abstract | Positron annihilation spectroscopy (PAS) coupled with a slow positron beam has been used to study the freevolume depth profile (0-10 £gm) in polymeric membrane systems prepared by the interfacial polymerization method. Doppler broadening energy parameters of annihilation radiation vary as a function of the depth from the surface through multi-layers in polyamide asymmetric membranes prepared under different experimental parameters, such as the time, the temperature, and pH of membrane preparation process of interfacial polymerization. Three layer structures including a skin, a transition, and the porous layers in those asymmetric membrane systems are obtained. Positron annihilation lifetime results provide additional information about free-volume size and distribution in nano- and micro-scale film membrane systems. PAS results are correlated with the pervaporation separation, flux and water wt% in permeate of 70% isopropanol aqueous solution and compared with the SEM images. ? 2008 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.relation.ispartof | Desalination | en_US |
dc.subject | Free volume | - |
dc.subject | Interfacial polymerization | - |
dc.subject | Polymeric membrane | - |
dc.subject | Positron annihilation spectroscopy | - |
dc.subject | Slow positron beam | - |
dc.title | Applications of positron annihilation spectroscopy to polymeric membranes | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1016/j.desal.2007.09.074 | - |
dc.identifier.scopus | 2-s2.0-55049124749 | - |
dc.identifier.url | https://www.scopus.com/inward/record.uri?eid=2-s2.0-55049124749&doi=10.1016%2fj.desal.2007.09.074&partnerID=40&md5=1f6ed03e75090af40ef68d574fd3d736 | - |
dc.relation.pages | 89-98 | - |
dc.relation.journalvolume | 234 | - |
dc.relation.journalissue | 1-3 | - |
item.openairetype | journal article | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
crisitem.author.dept | Chemical Engineering | - |
crisitem.author.dept | Center for Biotechnology | - |
crisitem.author.orcid | 0000-0001-7601-6453 | - |
crisitem.author.parentorg | College of Engineering | - |
crisitem.author.parentorg | Others: University-Level Research Centers | - |
顯示於: | 化學工程學系 |
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