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dc.contributor.authorDorin, Rachel Mika
dc.contributor.authorMarques, Debora S.
dc.contributor.authorSai, Hiroaki
dc.contributor.authorVainio, Ulla
dc.contributor.authorPhillip, William A.
dc.contributor.authorPeinemann, Klaus-Viktor
dc.contributor.authorNunes, Suzana Pereira
dc.contributor.authorWiesner, Ulrich B.
dc.date.accessioned2015-08-03T09:46:48Z
dc.date.available2015-08-03T09:46:48Z
dc.date.issued2012-05-15
dc.identifier.issn21611653
dc.identifier.doi10.1021/mz300100b
dc.identifier.urihttp://hdl.handle.net/10754/562187
dc.description.abstractSmall-angle X-ray scattering (SAXS) analysis of the diblock copolymer poly(styrene-b-(4-vinyl)pyridine) in a ternary solvent system of 1,4-dioxane, tetrahydrofuran, and N,N-dimethylformamide, and the triblock terpolymer poly(isoprene-b-styrene-b-(4-vinyl)-pyridine) in a binary solvent system of 1,4-dioxane and tetrahydrofuran, reveals a concentration-dependent onset of ordered structure formation. Asymmetric membranes fabricated from casting solutions with polymer concentrations at or slightly below this ordering concentration possess selective layers with the desired nanostructure. In addition to rapidly screening possible polymer solution concentrations, solution SAXS analysis also predicts hexagonal and square pore lattices of the final membrane surface structure. These results suggest solution SAXS as a powerful tool for screening casting solution concentrations and predicting surface structure in the fabrication of asymmetric ultrafiltration membranes from self-assembled block copolymers. (Figure presented) © 2012 American Chemical Society.
dc.description.sponsorshipThis work was funded in part by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST). Portions of this research were carried out at the light source DORIS III at DESY, a member of the Helmholtz Association (HGF)), as well as the Cornell High Energy Synchrotron Source (CHESS). CHESS is supported by the NSF and NIH/NIGMS via NSF Award DMR-0936384. This work was further supported by the National Science Foundation through a single investigator award (DMR-1104773)), and KAUST-GMSV award "Visualization and Pore Tuning of Asymmetric Membranes". This work made use of the KAUST Core Lab and the Integrated Advanced Microscopy Facilities and Polymer Characterization Facility of the Cornell Center for Materials Research (CCMR) with support from the National Science Foundation Materials Research Science and Engineering Centers (MRSEC) program (DMR 1120296). R.M.D acknowledges support from the NSF Graduate Research Fellowship Program.
dc.publisherAmerican Chemical Society (ACS)
dc.titleSolution small-angle x-ray scattering as a screening and predictive tool in the fabrication of asymmetric block copolymer membranes
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentMaterials Science and Engineering Program
dc.contributor.departmentNanostructured Polymeric Membrane Lab
dc.identifier.journalACS Macro Letters
dc.contributor.institutionDepartment of Materials Science and Engineering, Cornell University, Ithaca, NY 14853-1501, United States
dc.contributor.institutionHASYLAB at DESY, Notkestr. 85, 22607 Hamburg, Germany
dc.contributor.institutionDepartment of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, United States
kaust.personMarques, Debora S.
kaust.personNunes, Suzana Pereira
kaust.personVainio, Ulla


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