llyl propionate, allyl chloroacetate, allyl caproate, allyl butyrate, etc; aromatic acid esters (substituted and unsubstituted) of unsaturated alcohols wherein the alcohol precursor has from 2 to 8 carbon atoms but preferably from 2 to 3 carbon atoms such as allyl benzoate, diallyl phthalate vinyl phthalate, vinyl benzoate, etc.; ethylenically unsaturated aliphatic diacids containing from 4 to 10