4 butanediol dimethacrylate urethane dimethacrylates etc mono and diepoxides can also be utilized either alone or as additional constituents to the mixture of polyols the total mixture can be cured with a peroxide or photocured with a photoinitiator present mixtures of other alcohols including monohydric alcohols diols monoepoxides diepoxides and polyols with the sulfur containing diols and polyols can also be acrylated or methacrylated at the same time it is an advantage to acrylate or methacrylate mixtures of the various polyols in order to form a mixed vinyl ester formulation directly the reaction of these polyols with less than stoichiometric amount of acrylic acid methacrylic anhydride or acid etc leaves some free unreacted hydroxyl groups this helps promote a less crosslinked rubber and therefore more elastic rubber or polymer it also helps lower the t g and provides better sealant properties this is a general approach and can advantageously be used on any mixture of alcohols whether sulfur containing or not to efficiently form a mixture of monofunctional vinyl ester alcohols divinyl esters and monovinyl esters mono and diepoxides can also be utilized either alone or as additional constituents to the mixture of polyols such mixtures have good elongation and can function as sealants in their own right another way to produce the basic vinyl ester sulfur backbone resins is by reacting polymercaptan containing compounds such as trimethylolpropane tri 3 mercaptoate.