Production of super-absorbent foam of high swelling ratio

The present invention is foamed at least one monoethylenically unsaturated monomer having an acidic group, and at least one blowing agent, at least one crosslinking agent, an aqueous mixture comprising at least one surfactant step of step of polymerizing the mixture was foamed, and comprising the step of drying the polymerized mixture, a method of manufacturing a superabsorbent foam, the foam, and their use for absorbing aqueous fluids.