Representative hydroxyl group-substituted functional monomers include the hydroxyalkyl acrylates and hydroxyalkyl acrylamides such as 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 3-chloro-2-hydroxypropylmethyl acrylate, 2-hydroxyethyl acrylamide, 4-hydroxycyclohexyl acrylate, 3-acryloyloxyphenol, 2-(4-acryloyloxyphenyl)-2-(4-hydroxyphenyl)propane (also called bisphenol A monoacrylate), 2-pro