Molecular exchange through membranes of poly(2-vinylpyridine-block-ethylene oxide) vesicles

Miscibility with positive deviation in Tg–composition relationship in blends of poly(2-vinyl pyridine)-block-poly(ethylene oxide) and poly(p-vinyl phenol)

“…Poly-(2-vinyl pyridine)-block-poly(ethylene oxide) (P2VP-b-PEO) is an ''amphiphilic'' block copolymer, which has a waterinsoluble P2VP block and water-soluble PEO block. Mayer and Förster have demonstrated a vesicle-like morphology in P2VP-b-PEO block copolymers and their permeability properties by using PFG-NMR [23]. In this study, P2VP-b-PEO was used as a model copolymer for blending with PVPh in aims to understand effects of such amphiphilic block segments on interactions, miscibility, and morphology.…”

Self‐Assembled Block Copolymer Aggregates: From Micelles to Vesicles and their Biological Applications

“…Both highly permeable and virtually impermeable membranes can be designed. [42,[53][54][55][56] External constraints can also be exploited to tune Various self-assembled structures formed by amphiphilic block copolymers in a block-selective solvent. The type of structure formed is due to the inherent curvature of the molecule, which can be estimated through calculation of its dimensionless packing parameter, p. Figure 2.…”

The effect of ethanol on the permeability of block copolymer vesicle membranes

“…Based on these data, it is possible to differentiate the molecules of the continuous external phase from the encapsulated ones. At the same time, it allows one to observe an exchange process between both domains in the equilibrium state [8][9][10][11][12][13][14]. In the following, we present PFG-NMR results on vesicles formed by an amphiphilic block copolymer [15][16][17][18][19].…”