Gas permeation through rubbery polymer nano-corrugated membranes
The purpose of this investigation is to fabricate PDMS membranes with reliable surface roughness in order to reduce the surface resistances and to study its impact on the permeation rate. The permeance of CO 2 through PDMS membranes with rough surfaces at nanoscale is studied and compared with the o...
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| Veröffentlicht in: | Scientific reports 2018-04, Vol.8 (1), p.6345-9, Article 6345 |
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| creator | Firpo, Giuseppe Angeli, Elena Guida, Patrizia Savio, Roberto Lo Repetto, Luca Valbusa, Ugo |
| description | The purpose of this investigation is to fabricate PDMS membranes with reliable surface roughness in order to reduce the surface resistances and to study its impact on the permeation rate. The permeance of CO
2
through PDMS membranes with rough surfaces at nanoscale is studied and compared with the one of membranes with flat surfaces. At very low thickness, rough membranes have a permeance greater than that of membranes with flat surfaces. The enhancement occurs in a regime where the gas transport is sorption desorption surface rate limited, and cannot be explained by the increase in surface area due to the corrugation. The analysis, introducing a phenomenological model in analogy with electrical flow, indicates that nano-corrugation reduces the surface resistance. To test the model, the permeance of N
2
is also measured in the same experimental conditions and the influence of surface roughness on permeation rate of CO
2
, He, CH
4
and N
2
is studied. The comparison among the gases suggests that the Henry’s coefficient depends on the surface roughness and allows discussing the role of roughness on membrane selectivity. |
| doi_str_mv | 10.1038/s41598-018-24551-4 |
| format | Article |
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2
through PDMS membranes with rough surfaces at nanoscale is studied and compared with the one of membranes with flat surfaces. At very low thickness, rough membranes have a permeance greater than that of membranes with flat surfaces. The enhancement occurs in a regime where the gas transport is sorption desorption surface rate limited, and cannot be explained by the increase in surface area due to the corrugation. The analysis, introducing a phenomenological model in analogy with electrical flow, indicates that nano-corrugation reduces the surface resistance. To test the model, the permeance of N
2
is also measured in the same experimental conditions and the influence of surface roughness on permeation rate of CO
2
, He, CH
4
and N
2
is studied. The comparison among the gases suggests that the Henry’s coefficient depends on the surface roughness and allows discussing the role of roughness on membrane selectivity.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-018-24551-4</identifier><identifier>PMID: 29679013</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/301/119/544 ; 639/301/923/1028 ; Carbon dioxide ; Gases ; Humanities and Social Sciences ; Membranes ; multidisciplinary ; Polymers ; Science ; Science (multidisciplinary) ; Surface roughness</subject><ispartof>Scientific reports, 2018-04, Vol.8 (1), p.6345-9, Article 6345</ispartof><rights>The Author(s) 2018</rights><rights>2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c577t-7bc5c95be0cf50f9e3155370f782109312461bbbe41720b289c1751c1c45833</citedby><cites>FETCH-LOGICAL-c577t-7bc5c95be0cf50f9e3155370f782109312461bbbe41720b289c1751c1c45833</cites><orcidid>0000-0002-0526-2312</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5910414/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5910414/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,41096,42165,51551,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29679013$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Firpo, Giuseppe</creatorcontrib><creatorcontrib>Angeli, Elena</creatorcontrib><creatorcontrib>Guida, Patrizia</creatorcontrib><creatorcontrib>Savio, Roberto Lo</creatorcontrib><creatorcontrib>Repetto, Luca</creatorcontrib><creatorcontrib>Valbusa, Ugo</creatorcontrib><title>Gas permeation through rubbery polymer nano-corrugated membranes</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>The purpose of this investigation is to fabricate PDMS membranes with reliable surface roughness in order to reduce the surface resistances and to study its impact on the permeation rate. The permeance of CO
2
through PDMS membranes with rough surfaces at nanoscale is studied and compared with the one of membranes with flat surfaces. At very low thickness, rough membranes have a permeance greater than that of membranes with flat surfaces. The enhancement occurs in a regime where the gas transport is sorption desorption surface rate limited, and cannot be explained by the increase in surface area due to the corrugation. The analysis, introducing a phenomenological model in analogy with electrical flow, indicates that nano-corrugation reduces the surface resistance. To test the model, the permeance of N
2
is also measured in the same experimental conditions and the influence of surface roughness on permeation rate of CO
2
, He, CH
4
and N
2
is studied. 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Angeli, Elena ; Guida, Patrizia ; Savio, Roberto Lo ; Repetto, Luca ; Valbusa, Ugo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c577t-7bc5c95be0cf50f9e3155370f782109312461bbbe41720b289c1751c1c45833</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>639/301/119/544</topic><topic>639/301/923/1028</topic><topic>Carbon dioxide</topic><topic>Gases</topic><topic>Humanities and Social Sciences</topic><topic>Membranes</topic><topic>multidisciplinary</topic><topic>Polymers</topic><topic>Science</topic><topic>Science (multidisciplinary)</topic><topic>Surface roughness</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Firpo, Giuseppe</creatorcontrib><creatorcontrib>Angeli, Elena</creatorcontrib><creatorcontrib>Guida, Patrizia</creatorcontrib><creatorcontrib>Savio, Roberto Lo</creatorcontrib><creatorcontrib>Repetto, Luca</creatorcontrib><creatorcontrib>Valbusa, Ugo</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database</collection><collection>Biological Science Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Scientific reports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Firpo, Giuseppe</au><au>Angeli, Elena</au><au>Guida, Patrizia</au><au>Savio, Roberto Lo</au><au>Repetto, Luca</au><au>Valbusa, Ugo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Gas permeation through rubbery polymer nano-corrugated membranes</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><addtitle>Sci Rep</addtitle><date>2018-04-20</date><risdate>2018</risdate><volume>8</volume><issue>1</issue><spage>6345</spage><epage>9</epage><pages>6345-9</pages><artnum>6345</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>The purpose of this investigation is to fabricate PDMS membranes with reliable surface roughness in order to reduce the surface resistances and to study its impact on the permeation rate. The permeance of CO
2
through PDMS membranes with rough surfaces at nanoscale is studied and compared with the one of membranes with flat surfaces. At very low thickness, rough membranes have a permeance greater than that of membranes with flat surfaces. The enhancement occurs in a regime where the gas transport is sorption desorption surface rate limited, and cannot be explained by the increase in surface area due to the corrugation. The analysis, introducing a phenomenological model in analogy with electrical flow, indicates that nano-corrugation reduces the surface resistance. To test the model, the permeance of N
2
is also measured in the same experimental conditions and the influence of surface roughness on permeation rate of CO
2
, He, CH
4
and N
2
is studied. The comparison among the gases suggests that the Henry’s coefficient depends on the surface roughness and allows discussing the role of roughness on membrane selectivity.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>29679013</pmid><doi>10.1038/s41598-018-24551-4</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-0526-2312</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | 639/301/119/544 639/301/923/1028 Carbon dioxide Gases Humanities and Social Sciences Membranes multidisciplinary Polymers Science Science (multidisciplinary) Surface roughness |
| title | Gas permeation through rubbery polymer nano-corrugated membranes |
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