| 초록 |
Soft interfaces play an important role in various functional applications. Polyelectrolyte brushes provide soft interfaces with unique functionality. However, systematic studies on the structure and functionality of polyelectrolyte brushes at liquid interfaces have not been done yet. Various polyelectrolyte brushes with anionic, cationic, and zwitter ionic side chains were prepared on initiator immobilized Si-wafer and macroinitiator-modified polypropylene by surface-initiated atom transfer radical polymerization (SI-ATRP). Polymer chain conformation of polymer brushes at water/solid interfaces were characterized by small angle X-ray scattering and neutron reflectivity. Polymer brush-polymer brush interaction was characterized by force measurement with optical tweezers. Super hydrophilic surfaces, antifouling surfaces, environmentally friendly water lubrication systems, and repeatable environmentally friendly adhesion systems without organic solvents were realized through polyelectrolyte brushes immobilization. |
