Complexation-tailored morphology of asymmetric block copolymer membranes

Handle URI:
http://hdl.handle.net/10754/562906
Title:
Complexation-tailored morphology of asymmetric block copolymer membranes
Authors:
Madhavan, Poornima ( 0000-0003-0570-8174 ) ; Peinemann, Klaus-Viktor ( 0000-0003-0309-9598 ) ; Nunes, Suzana Pereira ( 0000-0002-3669-138X )
Abstract:
Hydrogen-bond formation between polystyrene-b-poly (4-vinylpyridine) (PS-b-P4VP) block copolymer (BCP) and -OH/-COOH functionalized organic molecules was used to tune morphology of asymmetric nanoporous membranes prepared by simultaneous self-assembly and nonsolvent induced phase separation. The morphologies were characterized by field emmision scanning electron microscopy (FESEM) and atomic force microscopy (AFM). Hydrogen bonds were confirmed by infrared (IR), and the results were correlated to rheology characterization. The OH-functionalized organic molecules direct the morphology into hexagonal order. COOH-functionalized molecules led to both lamellar and hexagonal structures. Micelle formation in solutions and their sizes were determined using dynamic light scattering (DLS) measurements and water fluxes of 600-3200 L/m 2·h·bar were obtained. The pore size of the plain BCP membrane was smaller than with additives. The following series of additives led to pores with hexagonal order with increasing pore size: terephthalic acid (COOH-bifunctionalized) < rutin (OH-multifunctionalized) < 9-anthracenemethanol (OH-monofunctionalized) < 3,5-dihydroxybenzyl alcohol (OH-trifunctionalized). © 2013 American Chemical Society.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical and Biological Engineering Program; Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Nanostructured Polymeric Membrane Lab
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
Issue Date:
14-Aug-2013
DOI:
10.1021/am401497m
PubMed ID:
23815587
Type:
Article
ISSN:
19448244
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Environmental Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Chemical and Biological Engineering Program; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorMadhavan, Poornimaen
dc.contributor.authorPeinemann, Klaus-Viktoren
dc.contributor.authorNunes, Suzana Pereiraen
dc.date.accessioned2015-08-03T11:14:54Zen
dc.date.available2015-08-03T11:14:54Zen
dc.date.issued2013-08-14en
dc.identifier.issn19448244en
dc.identifier.pmid23815587en
dc.identifier.doi10.1021/am401497men
dc.identifier.urihttp://hdl.handle.net/10754/562906en
dc.description.abstractHydrogen-bond formation between polystyrene-b-poly (4-vinylpyridine) (PS-b-P4VP) block copolymer (BCP) and -OH/-COOH functionalized organic molecules was used to tune morphology of asymmetric nanoporous membranes prepared by simultaneous self-assembly and nonsolvent induced phase separation. The morphologies were characterized by field emmision scanning electron microscopy (FESEM) and atomic force microscopy (AFM). Hydrogen bonds were confirmed by infrared (IR), and the results were correlated to rheology characterization. The OH-functionalized organic molecules direct the morphology into hexagonal order. COOH-functionalized molecules led to both lamellar and hexagonal structures. Micelle formation in solutions and their sizes were determined using dynamic light scattering (DLS) measurements and water fluxes of 600-3200 L/m 2·h·bar were obtained. The pore size of the plain BCP membrane was smaller than with additives. The following series of additives led to pores with hexagonal order with increasing pore size: terephthalic acid (COOH-bifunctionalized) < rutin (OH-multifunctionalized) < 9-anthracenemethanol (OH-monofunctionalized) < 3,5-dihydroxybenzyl alcohol (OH-trifunctionalized). © 2013 American Chemical Society.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectblock copolymersen
dc.subjecthydrogen bonden
dc.subjectmembranesen
dc.subjectself-assemblyen
dc.titleComplexation-tailored morphology of asymmetric block copolymer membranesen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical and Biological Engineering Programen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentNanostructured Polymeric Membrane Laben
dc.identifier.journalACS Applied Materials & Interfacesen
kaust.authorPeinemann, Klaus-Viktoren
kaust.authorNunes, Suzana Pereiraen
kaust.authorMadhavan, Poornimaen

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