期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 34, 期 7, 页码 610-615出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201200770
关键词
block copolymer; membrane; phase separation; self-assembly; stimuli-sensitive polymer
资金
- FP7 EU-project SELFMEM [NMP3-SL-2009-228652]
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.
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