Self-assembly of Polystyrene- b -poly(2-vinylpyridine)- b -poly(ethylene oxide) Triblock Terpolymers
Nunes, Suzana Pereira
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Nanostructured Polymeric Membrane Lab
Physical Sciences and Engineering (PSE) Division
KAUST Catalysis Center (KCC)
Polymer Synthesis Laboratory
Advanced Membranes and Porous Materials Research Center
Permanent link to this recordhttp://hdl.handle.net/10754/626134
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AbstractPolystyrene-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.
CitationMusteata V, Sutisna B, Polymeropoulos G, Avgeropoulos A, Meneau F, et al. (2017) Self-assembly of Polystyrene- b -poly(2-vinylpyridine)- b -poly(ethylene oxide) Triblock Terpolymers. European Polymer Journal. Available: http://dx.doi.org/10.1016/j.eurpolymj.2017.10.016.
SponsorsThis work was sponsored by King Abdullah University of Science and Technology (KAUST). The authors thank for access at SAXS1 at the Laboratorio Nacional de Luz Sincrotron (LNLS), Brazil and Tiago Araujo Kakile for the help during measurements.
JournalEuropean Polymer Journal