AbstractPreparation of polyvalent metal salts of ethyleneglycol–methacrylate–maleate (EMM) was investigated by the reaction of Na salt of EMM and chlorides of polyvalent metals such as Al3+, Cr3+, Fe3+, Ni2+, Co2−, and Cu2+. It was found that, among the metal salts obtained, the Cr salt could be obtained in the form of (EMM)2Cr(OH) in high purity, where EMM means EMM residue,Then, (EMM)2Cr(OH) was copolymerized with styrene, MMA, and hydroxyethyl methacrylate. In the copolymerization, the rates of copolymerization increased markedly as the concentration of (EMM)2Cr(OH) increased. As for the physical properties of the copolymers obtained, Rockwell hardness and compressive strength can be improved by introducing (EMM)2Cr(OH) into the polymers, and HDT, tensile, and flexural strengths can also be improved by selecting the most suitable concentration of (EMM)2Cr(OH) according to the species of vinyl monomer. Further, TGA and boiling water resistance of the copolymers a
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