Switchable pH-responsive polymeric membranes prepared via block copolymer micelle assembly

Handle URI:
http://hdl.handle.net/10754/561780
Title:
Switchable pH-responsive polymeric membranes prepared via block copolymer micelle assembly
Authors:
Nunes, Suzana Pereira ( 0000-0002-3669-138X ) ; Behzad, Ali Reza; Hooghan, Bobby; Sougrat, Rachid; Karunakaran, Madhavan; Pradeep, Neelakanda; Vainio, Ulla; Peinemann, Klaus-Viktor ( 0000-0003-0309-9598 )
Abstract:
A process is described to manufacture monodisperse asymmetric pH-responsive nanochannels with very high densities (pore density >2 × 10 14 pores per m2), reproducible in m2 scale. Cylindric pores with diameters in the sub-10 nm range and lengths in the 400 nm range were formed by self-assembly of metal-block copolymer complexes and nonsolvent-induced phase separation. The film morphology was tailored by taking into account the stability constants for a series of metal-polymer complexes and confirmed by AFM. The distribution of metal-copolymer micelles was imaged by transmission electron microscopy tomography. The pH response of the polymer nanochannels is the strongest reported with synthetic pores in the nm range (reversible flux increase of more than 2 orders of magnitude when switching the pH from 2 to 8) and could be demonstrated by cryo-field emission scanning electron microscopy, SAXS, and ultra/nanofiltration experiments. © 2011 American Chemical Society.
KAUST Department:
Advanced Nanofabrication, Imaging and Characterization Core Lab; Advanced Membranes and Porous Materials Research Center; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Chemical and Biological Engineering Program; Core Labs; Nanostructured Polymeric Membrane Lab
Publisher:
American Chemical Society (ACS)
Journal:
ACS Nano
Issue Date:
24-May-2011
DOI:
10.1021/nn200484v
PubMed ID:
21504167
Type:
Article
ISSN:
19360851
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Environmental Science and Engineering Program; Advanced Nanofabrication, Imaging and Characterization Core Lab; 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.authorNunes, Suzana Pereiraen
dc.contributor.authorBehzad, Ali Rezaen
dc.contributor.authorHooghan, Bobbyen
dc.contributor.authorSougrat, Rachiden
dc.contributor.authorKarunakaran, Madhavanen
dc.contributor.authorPradeep, Neelakandaen
dc.contributor.authorVainio, Ullaen
dc.contributor.authorPeinemann, Klaus-Viktoren
dc.date.accessioned2015-08-03T09:04:26Zen
dc.date.available2015-08-03T09:04:26Zen
dc.date.issued2011-05-24en
dc.identifier.issn19360851en
dc.identifier.pmid21504167en
dc.identifier.doi10.1021/nn200484ven
dc.identifier.urihttp://hdl.handle.net/10754/561780en
dc.description.abstractA process is described to manufacture monodisperse asymmetric pH-responsive nanochannels with very high densities (pore density >2 × 10 14 pores per m2), reproducible in m2 scale. Cylindric pores with diameters in the sub-10 nm range and lengths in the 400 nm range were formed by self-assembly of metal-block copolymer complexes and nonsolvent-induced phase separation. The film morphology was tailored by taking into account the stability constants for a series of metal-polymer complexes and confirmed by AFM. The distribution of metal-copolymer micelles was imaged by transmission electron microscopy tomography. The pH response of the polymer nanochannels is the strongest reported with synthetic pores in the nm range (reversible flux increase of more than 2 orders of magnitude when switching the pH from 2 to 8) and could be demonstrated by cryo-field emission scanning electron microscopy, SAXS, and ultra/nanofiltration experiments. © 2011 American Chemical Society.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectBlock copolymeren
dc.subjectMembraneen
dc.subjectMicelle self-assemblyen
dc.subjectpH responseen
dc.titleSwitchable pH-responsive polymeric membranes prepared via block copolymer micelle assemblyen
dc.typeArticleen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical and Biological Engineering Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentNanostructured Polymeric Membrane Laben
dc.identifier.journalACS Nanoen
dc.contributor.institutionHASYLAB, Deutsches Elektronen-Synchrotron (DESY), D-22607 Hamburg, Germanyen
kaust.authorNunes, Suzana Pereiraen
kaust.authorBehzad, Ali Rezaen
kaust.authorSougrat, Rachiden
kaust.authorKarunakaran, Madhavanen
kaust.authorPeinemann, Klaus-Viktoren
kaust.authorHooghan, Bobbyen
kaust.authorPradeep, Neelakandaen

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