Self-assembly in casting solutions of block copolymer membranes

Marques, D.; Vainio, U.; Chaparro, N.; Calo, Victor; Bezahd, A.; Pitera, J.; Peinemann, K.; Nunes, S.

doi:10.1039/c3sm27475f

Access Status

Fulltext not available

Authors

Marques, D.

Vainio, U.

Chaparro, N.

Calo, Victor

Bezahd, A.

Pitera, J.

Peinemann, K.

Nunes, S.

Date

2013

Type

Journal Article

Metadata

Show full item record

Citation

Marques, D. and Vainio, U. and Chaparro, N. and Calo, V. and Bezahd, A. and Pitera, J. and Peinemann, K. et al. 2013. Self-assembly in casting solutions of block copolymer membranes. Soft Matter. 9 (23): pp. 5557-5564.

Source Title

Soft Matter

DOI

10.1039/c3sm27475f

ISSN

1744-683X

School

Department of Applied Geology

URI

http://hdl.handle.net/20.500.11937/51431

Collection

Curtin Research Publications

Abstract

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.