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Preparation and copolymerization of polyvalent metal salts of ethyleneglycol–methacrylate–phthalate
Author(s) -
Matsuda Hideaki,
Dohi Hidemi
Publication year - 1973
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1973.070170727
Subject(s) - copolymer , methyl methacrylate , monomer , materials science , styrene , ultimate tensile strength , polymer chemistry , metal , methacrylate , flexural strength , phthalate , polymer , composite material , metallurgy
Preparation of polyvalent metal salts of ethyleneglycol–methacrylate–phthalate (EMP) was investigated by the reaction of the Na salt of EMP and chlorides of polyvalent metals such as Al 3+ , Cr 3+ , Fe 3+ , Ni 2+ , Co 2+ , and Cu 2+ . It was found that, among the metal salts obtained the Cr salt could be obtained in the form of (EMP) 2− Cr(OH) in high purity and good yield where EMP means EMP residue: (EMP) 2−Cr(OH) is soluble in chief organic solvents and vinyl monomers such as styrene (St) and MMA. (EMP) 2 Cr(OH) was then copolymerized with St and MMA. As for the physical properties of the copolymers obtained, heat distortion temperature, compressive strength, and Rockwell hardness were generally improved by introducing (EMP 2 )Cr(OH) into the polymers. Tensile strength, flexural strength, and impact strength were also improved by selecting the most suitable concentration of (EMP) 2 Cr(OH) according to the species of vinyl monomers. Moreover, the physical properties of (EMP) 2 Cr(OH)–MMA copolymers are generally superior to those of (EMP) 2 Cr(OH)–St copolymers. TGA and boiling water resistance of the copolymers were also discussed.