| 초록 |
Exquisite surface wettability control of separation system surface is required to achieve separation of liquids with low surface tension difference. We demonstrate a series of surface-energy-controlled homogeneous copolymer films to control the surface wettability of polyester fabric, utilizing 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), pV4D4, and a hydrophilic polymer, poly(4-vinylpyridine), p4VP. In vapor phase, the iCVD process allows the formation of homogeneous copolymers from two immiscible. Simply by tuning the flow rate ratio of monomer pairs, a series of homogeneous copolymers with systematically controlled surface energy were formed successfully. The fabricated separation system could separate water (surface energy = 72.8 mJ/m2), glycerol (64 mJ/m2), ethylene glycol (48 mJ/m2), and olive oil (35.1 mJ/m2) sequentially with excellent selectivity. |
