THERMOSENSITIVE COPOLYMERS AND FORWARD OSMOSIS WATER TREATMENT DEVICES AND METHODS USING THE SAME

摘要

PURPOSE: A temperature-sensitive copolymer provides a solution which has high osmotic pressure and low backward diffusion of solute and of which the solute can be easily recovered and collected. CONSTITUTION: A temperature-sensitive copolymer comprises a first repeating unit in which a temperature-sensitive oligomer is grafted; and a second repeating unit including an ionic moiety and the counter ion of the ionic moiety. The temperature-sensitive oligomer is an oligomer including a repeating unit derived from an unsaturated monomer which has a moiety represented by chemical formula 1: *-C(=O)N(R2)(R3) or a moiety represented by chemical formula 2 or an oligomer including a repeating unit derived from a heterocyclic compound which contains C, N, and O in the ring and has C=N bonds.