| 초록 |
Purification and concentration of high value-added solutes in organic solvents should be carried out in the chemical and pharmaceutical industries. Organic solvent nanofiltration (OSN) is a membrane-based separation that separates solute molecules with molecular weights of 200-1000 g mol-1 from organic solvents. It is an energy-efficient and low-carbon emission process compared to the distillation process. Although polymeric membrane is in the spotlight for its variety of materials and excellent processability, it consumes a large amount of solvent waste generated in the additional crosslinking process for insufficient chemical stability. Therefore, we fabricated an organosiloxane composite membrane using initiated Chemical Vapor Deposition (iCVD) process with superior chemical stability. An organosiloxane composite membrane was fabricated using 1,3,5,7-tetravinyl-1,3,5,7-tetramethyl (V4D4) monomer, and the tetravinyl group forms a highly crosslinked structure. As a result, it showed high chemical stability with no significant difference in solvents and showed a low molecular weight cut-off (MWCO) rejection of 245 g mol-1 for methanol solvent. |
