Polymers of glycidol (2,3-epoxypropanol-1) of different molar masses (between 2(.)10(4) and 2(.)10(5)) and chain topology (linear and comb-like) were synthesised and used to obtain a series of temperature responsive water-soluble poly(glycidol-co-glycidol acetate)s. The degree of the substitution of the hydroxyl groups with the acetate groups influences the solution behaviour of the obtained copolymers, the cloud point may be controlled between +4degreesC and +100degreesC.