Metal‐containing crosslinked polyester resins by combined polyesterification and polymerization of curable mixtures based on divalent metal salts of mono(hydroxyethyl)phthalate

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Abstract
Preparations of metal‐containing crosslinked polyester resins based on divalent metal salts of mono(hydroxyethyl)phthalate were investigated by the cure, by combined polyesterification and polymerization, of curable mixtures prepared from above metal salts, maleic anhydride, glycidyl methacrylate, and methyl methacrylate. The curable mixtures containing Ca showed lower viscosity than those containing Mg. They were subjected to curing reactions in the presence of peroxide and under photoirradiation, respectively. In the cure, polyesterification and polymerization proceeded simultaneously smoothly, giving metal‐containing cured resins. Generally, the peroxide‐cured resins showed better physical properties than the photo‐cured resins. Especially, the former resins with high metal content showed high compressive strength and Rockwell hardness. Further, resistance to chemical attack and boiling water and thermal behavior are also discussed.

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