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dc.contributor.authorLively, Ryan P.
dc.contributor.authorMysona, Joshua A.
dc.contributor.authorChance, Ronald R.
dc.contributor.authorKoros, William J.
dc.date.accessioned2016-02-25T13:19:13Z
dc.date.available2016-02-25T13:19:13Z
dc.date.issued2011-09-28
dc.identifier.citationLively RP, Mysona JA, Chance RR, Koros WJ (2011) Formation of Defect-Free Latex Films on Porous Fiber Supports. ACS Applied Materials & Interfaces 3: 3568–3582. Available: http://dx.doi.org/10.1021/am200789g.
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.pmid21812472
dc.identifier.doi10.1021/am200789g
dc.identifier.urihttp://hdl.handle.net/10754/598352
dc.description.abstractWe present here the creation of a defect-free polyvinylidene chloride barrier layer on the lumen-side of a hollow fiber sorbent. Hollow fiber sorbents have previously been shown to be promising materials for enabling low-cost CO 2 capture, provided a defect-free lumen-side barrier layer can be created. Film experiments examined the effect of drying rate, latex age, substrate porosity (porous vs nonporous), and substrate hydrophobicity/ hydrophilicity. Film studies show that in ideal conditions (i.e., slow drying, fresh latex, and smooth nonporous substrate), a defect-free film can be formed, whereas the other permutations of the variables investigated led to defective films. These results were extended to hollow fiber sorbents, and despite using fresh latex and relatively slow drying conditions, a defective lumen-side layer resulted. XRD and DSC indicate that polyvinylidene chloride latex develops crystallinity over time, thereby inhibiting proper film formation as confirmed by SEM and gas permeation. This and other key additional challenges associated with the porous hollow fiber substrate vs the nonporous flat substrate were overcome. By employing a toluene-vapor saturated drying gas (a swelling solvent for polyvinylidene chloride) a defect-free lumen-side barrier layer was created, as investigated by gas and water vapor permeation. © 2011 American Chemical Society.
dc.description.sponsorshipThe authors thank ExxonMobil Corporation for funding this research. W.J.K. thanks King Abdullah University for Science and Technology (KAUST) for funding his time.
dc.publisherAmerican Chemical Society (ACS)
dc.subjectbarrier layer
dc.subjecthollow fiber sorbents
dc.subjectlatex age
dc.subjectpolyvinylidene chloride
dc.subjectporous substrate
dc.titleFormation of Defect-Free Latex Films on Porous Fiber Supports
dc.typeArticle
dc.identifier.journalACS Applied Materials & Interfaces
dc.contributor.institutionGeorgia Institute of Technology, Atlanta, United States


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