Nanotechnology with its “bottom-up” approach gives many opportunities to the membrane
science and technology community for the developing advanced membranes. In this chapter, the
fabrication of separation membranes from block copolymers is described. In addition, a strategy to
manipulate the self-assembly of block copolymers is proposed highlighting the recent advances. As
reported, the block copolymers offer exquisite nanostructures that lead to fabricate membranes with
controlled pore size (nanopores), as well as dense films with tailored properties for CO2 capture.
Keywords: Block copolymers, self-assembly, nanostructured membranes, controlled pore size, dense films,
gas separation.