Self-assembly of polystyrene- b -poly(2-vinylpyridine)- b -poly(ethylene oxide) triblock terpolymers
| Autor: | Klaus-Viktor Peinemann, Valentina Musteata, Suzana Pereira Nunes, Burhannudin Sutisna, Florian Meneau, Nikos Hadjichristidis, Georgios Polymeropoulos, Apostolos Avgeropoulos |
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| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Ethylene oxide Small-angle X-ray scattering Organic Chemistry Oxide General Physics and Astronomy 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Membrane chemistry Chemical engineering Polymer chemistry Materials Chemistry Copolymer Lamellar structure Polystyrene 0210 nano-technology |
| Zdroj: | European Polymer Journal. 100:121-131 |
| ISSN: | 0014-3057 |
| DOI: | 10.1016/j.eurpolymj.2017.10.016 |
| Popis: | Polystyrene-b-poly(2-vinylpyridine)-b-poly(ethylene oxide) (PS-b-P2VP-b-PEO) terpolymer is a versatile polymer to form isoporous films and membranes, due to the possibility of self-assembly control and the properties of the different blocks, such as the P2VP ability of complexation, and H-bond formation, and the PEO biocompatibility. Copolymers with different block ratios and sizes were synthesized. The correlation between their equilibrium bulk morphology, the self-assembly in dilute and semi-dilute solutions and the non-equilibrium porous structures of membranes, obtained by non-solvent induced phase separation, was investigated and discussed in detail. The characterization was performed by small-angle X-ray scattering (SAXS), scanning (SEM) and transmission electron microscopy (TEM). Hexagonal, cubic and lamellar arrangements were observed. The preparation conditions were optimized and a regular, isoporous morphology, suitable for membrane application, was successfully obtained with PS80.5k-b-P2VP64.4k-b-PEO16.1k. |
| Databáze: | OpenAIRE |
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