| 초록 |
Alkenyl-functionalized poly[2-(3-butenyl)-2-oxazoline] were synthesized by living cationic ring-opening polymerization of 2-(3-butenyl)-2-oxazoline. Various mercaptans were used for the thiol-ene click reaction and introduced into vinyl double bond of alkenyl polyoxazoline without side reactions under mild reaction conditions. Using this thiol-ene click reaction various functional groups were introduced into polyoxazoline. In this work, poly[2-(3-butenyl)-2-oxazoline] were functionalized with various thiol compounds, such as 2-mercaptoethylamine·hydrochloride, thiomalic acid, and 2-mercaptoethanol via thiol-ene click reaction, forming –NH2, -COOH, -OH functionalized polyoxazoline with almost complete functionalization yield. Amine functionalized polyoxazoline could be substituted to guanidines through the further reaction with cyanamides. Their functionality and exact structures of multi-functionalized polymers were confirmed by using 1H-NMR, FT-IR, and SEC. |
