| 초록 |
Exquisite surface wettability control of separation system surface is required to achieve separation of liquids with low surface tension difference. Here, we demonstrate a series of surface energy-controlled homogeneous copolymer films to control the surface wettability of polyester fabric, utilizing a vapor-phase process, 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, hydrophilic/hydrophobic monomer pairs. Simply by tuning the flow rate ratio of monomer pairs, a series of homogenous copolymers with systematically controlled surface energy were formed successfully. The fabricated separation system could separate water, glycerol, ethylene glycol, and olive oil sequentially with excellent selectivity. |
