| 초록 |
Control of surface wettability has been received a great deal of attention owing to its industrial significance. We demonstrated a series of surface-energy-engineered homogeneous copolymer films to control the surface wettability of membranes, utilizing a vapor-phase process, termed as initiated chemical vapor deposition (iCVD). The homogeneous copolymer films consist of a hydrophobic polymer, poly(2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane) and a hydrophilic polymer, poly(4-vinyl pyridine). The iCVD process allows the formation of homogeneous copolymers from two immiscible monomers, which is highly challenging to achieve in liquid phase. Simply by tuning the composition of monomer pairs, a series of homogenous copolymers with systematically controlled surface energy were formed. The fabricated membrane system could separate water, glycerol, ethylene glycol, and olive oil sequentially with excellent selectivity, just by choosing a membrane with proper surface energy. |
