| abstract |
A self-assembled block copolymer, for example a film formed from a two-block copolymer of the formula (I), is disclosed: (I), Where R 1 -R 4 , n, and m are as described herein, which finds use to produce nanoporous membranes. Embodiments of the membrane include a block copolymer self-assembling in a cylindrical form. Also disclosed is a method of making such a film comprising spray coating the polymer solution containing the two-block copolymer to obtain a thin film, followed by annealing the thin film in a solvent vapor and / So as to form a nanoporous film. |