Type
ArticleAuthors
Marques, Debora S.Vainio, Ulla
Moreno Chaparro, Nicolas

Calo, Victor M.

Bezahd, Ali Reza
Pitera, Jed W.
Peinemann, Klaus-Viktor

Nunes, Suzana Pereira

KAUST Department
Advanced Membranes and Porous Materials Research CenterAdvanced Nanofabrication, Imaging and Characterization Core Lab
Biological and Environmental Sciences and Engineering (BESE) Division
Earth Science and Engineering Program
Environmental Science and Engineering Program
Material Science and Engineering Program
Nanostructured Polymeric Membrane Lab
Numerical Porous Media SRI Center (NumPor)
Physical Science and Engineering (PSE) Division
Water Desalination and Reuse Research Center (WDRC)
Date
2013Permanent link to this record
http://hdl.handle.net/10754/562500
Metadata
Show full item recordAbstract
Membranes with exceptional pore regularity and high porosity were obtained from block copolymer solutions. We demonstrate by small-angle X-ray scattering that the order which gives rise to the pore morphology is already incipient in the casting solution. Hexagonal order was confirmed in PS-b-P4VP 175k-b-65k solutions in DMF/THF/dioxane with concentrations as high as 24 wt%, while lamellar structures were obtained in more concentrated solutions in DMF or DMF/dioxane. The change in order has been understood with the support of dissipative particle dynamic modeling. © 2013 The Royal Society of Chemistry.Citation
Marques, D. S., Vainio, U., Chaparro, N. M., Calo, V. M., Bezahd, A. R., Pitera, J. W., … Nunes, S. P. (2013). Self-assembly in casting solutions of block copolymer membranes. Soft Matter, 9(23), 5557. doi:10.1039/c3sm27475fSponsors
We thank the German Synchrotron (DESY) for the beam time. The work was supported by the KAUST Geometric Modeling and Scientific Visualization Collaborative Award, "Visualization and Pore Tuning of Asymmetric Membranes" and KAUST-IBM Program "Simulation of pore formation in membranes by self-assembly". We also thank N. Pradeep and M. Karunakaran for their previous work on this topic and help in the initial stage of membrane preparation.Publisher
Royal Society of Chemistry (RSC)Journal
Soft Matterae974a485f413a2113503eed53cd6c53
10.1039/c3sm27475f