It is an acetal-type crosslinking agent comonomer and has been used: . in radical emulsion copolymerization of 2-hydroxyethyl methacrylate; . as cross-linking agent in the synthesis of acid-degradable core-crosslinked micelles; . in the synthesis of new biocompatible copolymer for loading the indomethacin as drμg model. It is an acetal-type crosslinking agent comonomer and has been used: . in radical emulsion copolymerization of 2-hydroxyethyl methacrylate; . as cross-linking agent in the synthesis of acid-degradable core-crosslinked micelles; . in the synthesis of new biocompatible copolymer for loading the indomethacin as drug model.