TY - JOUR
T1 - Isoporous PS-b-PEO ultrafiltration membranes via self-assembly and water-induced phase separation
AU - Karunakaran, Madhavan
AU - Nunes, Suzana Pereira
AU - Qiu, Xiaoyan
AU - Yu, Haizhou
AU - Peinemann, Klaus-Viktor
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2014/3
Y1 - 2014/3
N2 - A simple and efficient approach towards the fabrication of a skinned membrane with highly ordered pores in the nanometer range is presented here. We successfully combined the self-assembly of PS-b-PEO block copolymer and water induced phase separation for the preparation of isoporous PS-b-PEO block copolymer membranes. We produced for the first time asymmetric isoporous PS-b-PEO membranes with a 100nm thin isoporous separating layer using water at room temperature as coagulant. This was possible by careful selection of the block lengths and the solvent system. FESEM, AFM and TEM measurements were employed to characterize the nanopores of membranes. The pure water fluxes were measured and the flux of membrane was exceptionally high (around 800Lm-2h-1bar-1). Protein rejection measurements were carried out for this membrane and the membrane had a retention of about 67% of BSA and 99% of γ-globulin. © 2013 Elsevier B.V.
AB - A simple and efficient approach towards the fabrication of a skinned membrane with highly ordered pores in the nanometer range is presented here. We successfully combined the self-assembly of PS-b-PEO block copolymer and water induced phase separation for the preparation of isoporous PS-b-PEO block copolymer membranes. We produced for the first time asymmetric isoporous PS-b-PEO membranes with a 100nm thin isoporous separating layer using water at room temperature as coagulant. This was possible by careful selection of the block lengths and the solvent system. FESEM, AFM and TEM measurements were employed to characterize the nanopores of membranes. The pure water fluxes were measured and the flux of membrane was exceptionally high (around 800Lm-2h-1bar-1). Protein rejection measurements were carried out for this membrane and the membrane had a retention of about 67% of BSA and 99% of γ-globulin. © 2013 Elsevier B.V.
UR - http://hdl.handle.net/10754/563408
UR - https://linkinghub.elsevier.com/retrieve/pii/S0376738813009009
UR - http://www.scopus.com/inward/record.url?scp=84890214188&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2013.11.015
DO - 10.1016/j.memsci.2013.11.015
M3 - Article
SN - 0376-7388
VL - 453
SP - 471
EP - 477
JO - Journal of Membrane Science
JF - Journal of Membrane Science
ER -