TY - JOUR
T1 - Self-assembly of Polystyrene- b -poly(2-vinylpyridine)- b -poly(ethylene oxide) Triblock Terpolymers
AU - Musteata, Valentina-Elena
AU - Sutisna, Burhannudin
AU - Polymeropoulos, Georgios
AU - Avgeropoulos, Apostolos
AU - Meneau, Florian
AU - Peinemann, Klaus-Viktor
AU - Hadjichristidis, Nikos
AU - Nunes, Suzana Pereira
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This 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.
PY - 2017/11/8
Y1 - 2017/11/8
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/626134
UR - http://www.sciencedirect.com/science/article/pii/S0014305717312223
UR - http://www.scopus.com/inward/record.url?scp=85041482223&partnerID=8YFLogxK
U2 - 10.1016/j.eurpolymj.2017.10.016
DO - 10.1016/j.eurpolymj.2017.10.016
M3 - Article
SN - 0014-3057
VL - 100
SP - 121
EP - 131
JO - European Polymer Journal
JF - European Polymer Journal
ER -