Thermosensitive copolymers, and forward osmosis water treatment devices and methods of using the same

摘要

Disclosed is a thermosensitive copolymer, which includes a first repeating unit having a temperature-sensitive oligomer grafted thereto and a second repeating unit having an ionic moiety and a counter ion to the ionic moiety, wherein the temperature-sensitive oligomer is an oligomer including a repeating unit derived from a unsaturated monomer with a moiety represented by Chemical Formula 1 or Chemical Formula 2, or an oligomer including a repeating unit derived from a heterocyclic compound having C, N, and O and having a C=N bond in its ring.
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ [Chemical Formula 1]€ƒ€ƒ€ƒ€ƒ€ƒ*-C(=O)N(R 2 )(R 3 )

In Chemical Formula 1,
R 2 and R 3 are each independently hydrogen or a linear or branched C1 to C6 alkyl group, a C3 to C7 cycloalkyl group, or a C6 to C10 aryl group, R 2 and R 3 are not both be hydrogen, and R 2 and R 3 may be combined to form a nitrogen containing heterocycle. In Chemical Formula 2, R 4 is a C2 to C5 alkylene group.