Abstract 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.

中文翻译：

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聚苯乙烯-b-聚（2-乙烯基吡啶）-b-聚（环氧乙烷）三嵌段三元共聚物的自组装

摘要 聚苯乙烯-b-聚（2-乙烯基吡啶）-b-聚（环氧乙烷）（PS-b-P2VP-b-PEO）三元共聚物是一种多功能聚合物，可形成等孔薄膜和膜，因为它具有自组装的可能性。控制和不同嵌段的性质，如 P2VP 络合能力和 H 键形成，以及 PEO 生物相容性。合成了具有不同嵌段比和尺寸的共聚物。详细研究和讨论了它们的平衡体积形态、稀和半稀溶液中的自组装以及通过非溶剂诱导相分离获得的膜的非平衡多孔结构之间的相关性。通过小角 X 射线散射 (SAXS)、扫描 (SEM) 和透射电子显微镜 (TEM) 进行表征。六角形，观察到立方和层状排列。对制备条件进行了优化，使用 PS80.5k-b-P2VP64.4k-b-PEO16.1k 成功获得了适合膜应用的规则、等孔形态。