Ionic Liquid Enhanced Parallel Lamellar Ordering in Block Copolymer Films

Previous studies have shown that the degree of ordering and alignment in block copolymer (BCP) films can be enhanced by increasing the thermodynamic driving force for microphase separation, χN, where χ is the Flory–Huggins interaction parameter between the polymer components and N is the number of statistical segments in the BCP. In practice, this strategy for controlling the microstructure of any BCP film normally involves reducing the...