Bisomer S10W is an aqueous solution of a long chain methacrylate monoester based on a polyethylene glycol backbone. It is water soluble and contains approximately 23 EO units within the chain. Bisomer S10W is an excellent material to impart water solubility or water dispersibility within non-ionic organic molecules. Due to its low Glass Transition Temperature (Tg), it is also an excellent flexibilising molecule.