Macromolecular Chemistry and Physics · 2013 · 65 citations · 31 references
EngineeringChemical EngineeringMaterials ScienceMembrane SciencePolymer ChemistryPolymer EngineeringMembrane CharacterizationMembrane FabricationMembrane MaterialsMembrane SeparationPolymer MembranesPolymeric MembranesBlock Copolymer MembranesMembrane Morphology FormationPolymer Membrane MorphologyPolymer Membrane StructurePolymeric Membrane FabricationPoresPorous Polymer MembranesSalt Addition Effects
Abstract The influence of magnesium acetate on the non‐solvent‐induced phase separation (NIPS) process of amphiphilic polystyrene‐ block ‐poly(4‐vinylpyridine)s to gain integral‐asymmetric membranes is investigated. Highly uniform pores over the large areas of the membrane can be achieved, and the average pore diameter is adjusted by varying the total molar mass of the block copolymers used. These stimuli‐responsive membranes, which are solution cast in the absence or the presence of small amounts of magnesium acetate, are directly compared, showing a remarkable effect on the pore structures and their openness. Minor salt addition is considered to influence the polarity of the solvents used in a positive manner such that the NIPS process can be improved significantly. magnified image
31
Biodegradable Long-Circulating Polymeric Nanospheres
Ruxandra Gref, Yoshiharu Minamitake, Maria Teresa Peracchia et al. · Science · 1994 · 2.9K citations
Block copolymer micelles as vehicles for drug delivery
Kazunori Kataoka, Kwon Glenn S., Okano Teruo et al. · Journal of Controlled Release · 1993 · 870 citations