Switchable pH-responsive polymeric membranes prepared via block copolymer micelle assembly
Type
ArticleAuthors
Nunes, Suzana Pereira
Behzad, Ali Reza
Hooghan, Bobby
Sougrat, Rachid

Karunakaran, Madhavan
Neelakanda, Pradeep
Vainio, Ulla
Peinemann, Klaus-Viktor

KAUST Department
Advanced Membranes and Porous Materials Research CenterAdvanced Nanofabrication, Imaging and Characterization Core Lab
Biological and Environmental Sciences and Engineering (BESE) Division
Chemical Engineering Program
Core Labs
Environmental Science and Engineering Program
Imaging and Characterization Core Lab
Nanostructured Polymeric Membrane Lab
Physical Science and Engineering (PSE) Division
Water Desalination and Reuse Research Center (WDRC)
Date
2011-04-25Online Publication Date
2011-04-25Print Publication Date
2011-05-24Permanent link to this record
http://hdl.handle.net/10754/561780
Metadata
Show full item recordAbstract
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.Citation
Nunes, S. P., Behzad, A. R., Hooghan, B., Sougrat, R., Karunakaran, M., Pradeep, N., … Peinemann, K.-V. (2011). Switchable pH-Responsive Polymeric Membranes Prepared via Block Copolymer Micelle Assembly. ACS Nano, 5(5), 3516–3522. doi:10.1021/nn200484vPublisher
American Chemical Society (ACS)Journal
ACS NanoPubMed ID
21504167ae974a485f413a2113503eed53cd6c53
10.1021/nn200484v
Scopus Count
Collections
Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Advanced Membranes and Porous Materials Research Center; Environmental Science and Engineering Program; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Chemical Engineering Program; Water Desalination and Reuse Research Center (WDRC)Related articles
- Highly ordered nanostructured surfaces obtained with silica-filled diblock-copolymer micelles as templates.
- Authors: Frömsdorf A, Kornowski A, Pütter S, Stillrich H, Lee LT
- Issue date: 2007 May
- Fabrication of ordered anodic aluminum oxide using a solvent-induced array of block-copolymer micelles.
- Authors: Kim B, Park S, McCarthy TJ, Russell TP
- Issue date: 2007 Nov
- Controlling polymersome surface topology at the nanoscale by membrane confined polymer/polymer phase separation.
- Authors: LoPresti C, Massignani M, Fernyhough C, Blanazs A, Ryan AJ, Madsen J, Warren NJ, Armes SP, Lewis AL, Chirasatitsin S, Engler AJ, Battaglia G
- Issue date: 2011 Mar 22
- Macroscopic vertical alignment of nanodomains in thin films of semiconductor amphiphilic block copolymers.
- Authors: Brendel JC, Liu F, Lang AS, Russell TP, Thelakkat M
- Issue date: 2013 Jul 23
- Highly asymmetric lamellar nanopatterns via block copolymer blends capable of hydrogen bonding.
- Authors: Han SH, Pryamitsyn V, Bae D, Kwak J, Ganesan V, Kim JK
- Issue date: 2012 Sep 25