ot exclusively a propylene group when R??? contains an absence of poly(ethylene oxide), R1 is a hydrogen or methyl group, R??? is a C0 to C12, preferably a C2 to C8, alkylene group or a hydroxyl or carboxylic acid substituted alkylene group, alkene, a cycloalkyl, hydroxyl or carboxylic acid containing cycloalkyl or cycloalkyl-containing group, an aryl or aryl-containing group or a polyoxyalkylene