Methacrylic acid can be used to produce homopolymers and copolymers. It can be incorporated in copolymers in order to lower the softening point and reduce the hardness. It also improves the adhesion of polymers used in paints and adhesives. Methacrylic acid is a carboxylic acid which can be used to produce methacrylic esters, methacrylamide, N-substituted methacrylamides and methacryloyl chloride by common methods.