Poly (e-caprolactone)-ethoxylated fatty alcohol copolymers

A method of making a poly(s-caprolactone)-ethoxylated fatty alcohol copolymer, comprising the steps of:

• mixing ε-caprolactone and an ethoxylated fatty alcohol in a reaction vessel to form a reaction mixture;
• adding a catalyst to the reaction mixture to catalyze polymerization;
• and
• heating the reaction vessel to 140° C.

A method of preparing self-assembled nanocarriers, comprising the steps of:

• dissolving a poly(ε-caprolactone)-ethoxylated fatty alcohol block copolymer in an organic solvent to form a solution;
• adding the solution drop-wise into distilled water;
• and
• evaporating the organic solvent to form self-assembled nanocarriers.