| 摘要 |
Disclosed are self-assembled structures prepared from block copolymers, for example, diblock copolymers of the formula (I):
wherein R 1 -R 4 , n, and m are as described herein, which find use in preparing nanoporous membranes. In an embodiment, the block copolymer self-assembles into a cylindrical moiphology. Also disclosed is a method of preparing such self-assembled structures which involves spin coating a polymer solution containing the block copolymer to obtain a thin film, followed by solvent annealing of the film. Further disclosed is a method of preparing porous membranes from the self-assembled structures. |
