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Polymers 2018, 10(7), 733;

Negatively Charged Porous Thin Film from ABA Triblock Copolymer Assembly

Institut Européen des Membranes—IEM, Université de Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier CEDEX 05, France
Authors to whom correspondence should be addressed.
Received: 6 June 2018 / Revised: 2 July 2018 / Accepted: 3 July 2018 / Published: 3 July 2018
(This article belongs to the Special Issue Emerging Polymer Technologies)
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The preparation of well-arranged nano-porous thin films from an ABA triblock copolymer of polystyrene-block-poly(sodium 4-styrenesulfonate)-block-polystyrene (PS-PNaSS-PS) is reported. This copolymer was self-assembled in a N,N-dimethylformamide (DMF)/water mixture and the resulting micellar solution was used to prepare thin films via the compact packing of the flower-like micelles using spin coating method. The films were characterized by several microscopy techniques such as TEM, AFM, and SEM. Permeation test was performed to highlight the interconnected porous nature of the polymeric network obtained. Under applied water pressure, the micellar morphology was altered and a partial fusion of the micelles was observed that resulted in a change in the water permeability. Such hydrophilic nanoporous thin films with negatively charged interface could find applications in membrane filtration. View Full-Text
Keywords: block copolymer; self-assembly; porous film; membrane block copolymer; self-assembly; porous film; membrane

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Nehache, S.; Semsarilar, M.; Deratani, A.; Quemener, D. Negatively Charged Porous Thin Film from ABA Triblock Copolymer Assembly. Polymers 2018, 10, 733.

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