| 초록 |
Nanoporous materials with a pore size on the nanometer scale have found applications in a number of various fields including catalysis, sorption, gas sensing, ion exchange, optics, and photovoltaics. A useful form of block copolymers for application as nanoporous polymeric films is a hexagonal packed cylinder and nanopores can be generated by removing or swollen the minority blocks. In this work, self-assembled block copolymer thin films were prepared using cylinder-forming block copolymer system including polystyrene-block–poly(4-vinyl pyridine). Functional groups in P4VP offer the sites to interact with charged polyelectrolytes via electrostatic interaction. Nanopores obtained from block copolymer films were introduced by polyelectrolyte solutions containing poly(allylamine hydrochloride) and Poly(sodium 4-styrenesulfonate), respectively. A detailed study of the role that solution pH plays in the layer-by-layer processing of the polyelectrolytes PAH and PSS was carried out. |
