Thermo-responsive solution, and method of use therefor

A thermo-responsive osmotic solution having a lower critical solution temperature in a solvent, the thermo-responsive osmotic solution comprising:

• a) at least one tertiary amine containing compound;
• and
• b) at least one enolisable carbonyl compound of Formula I,
• wherein
• i) R1 and R2 are independently selected from a —C1-C7 alkyl, a —C3-C7 monocyclic or a -phenyl;
• or
• ii) one of R1 or R2 is selected from a —O—(C1-C7 alkyl) and the other is selected from a —C1-C7 alkyl;
• or
• iii) the carbonyl of Formula I forms
• a. a 3-15 membered monocyclic ketone;
• or
• b. a 3-15 membered monocyclic heterocyclic ketone;
• or
• c. acetophenone;
• wherein the at least one tertiary amine containing compound or the at least one enolisable carbonyl compound is immiscible with the solvent at or above 20 degrees Celsius and at 1 atmosphere;
• and wherein the solvent is water.