Formation of integral asymmetric membranes of AB diblock and ABC triblock copolymers by phase inversion.

Adina Jung, Volkan Filiz, Sofia Rangou, Kristian Buhr, Petra Merten, Janina Hahn, Juliana Clodt, Clarissa Abetz, Volker Abetz

Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str. 1, 21502, Geesthacht, Germany.

Macromolecular rapid communications 2013 Apr 12

filter terms:

The formation of integral asymmetric membranes from ABC triblock terpolymers by non-solvent-induced phase separation is shown. They are compared with the AB diblock copolymer precursors. Triblock terpolymers of polystyrene-block-poly(2-vinylpyridine)-block-poly(ethylene oxide) (PS-b-P2VP-b-PEO) with two compositions are investigated. The third block supports the formation of a membrane in a case, where the corresponding diblock copolymer does not form a good membrane. In addition, the hydrophilicity is increased by the third block and due to the hydroxyl group the possibility of post-functionalization is given. The morphologies are imaged by scanning electron microscopy. The influence of the PEO on the membrane properties is analyzed by water flux, retention, and dynamic contact angle measurements. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Citation

Adina Jung, Volkan Filiz, Sofia Rangou, Kristian Buhr, Petra Merten, Janina Hahn, Juliana Clodt, Clarissa Abetz, Volker Abetz. Formation of integral asymmetric membranes of AB diblock and ABC triblock copolymers by phase inversion. Macromolecular rapid communications. 2013 Apr 12;34(7):610-5