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Synthesis of polymers by using divalent metal salts of mono(hydroxyethyl) phthalate: Unsaturated polyesters from metal salts, glycol, anhydrides, and epoxides
Author(s) -
Matsuda Hideaki
Publication year - 1976
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.1976.070200412
Subject(s) - phthalic anhydride , epoxide , polyester , styrene , polymer chemistry , phthalate , maleic anhydride , propylene oxide , ethylene oxide , metal , ethylene glycol , chemistry , styrene oxide , carboxylate , organic chemistry , materials science , polymer , copolymer , catalysis
Syntheses of unsaturated polyesters were investigated by the divalent metal salts of mono(hydroxyethyl) phthalate–ethylene glycol–anhydrides–epoxide reactions. As anhydrides, phthalic anhydride and maleic anhydride were used, and propylene oxide and 1,2‐butylene oxide were the epoxides used. The metal carboxylate groups of the above metal salts catalyzed the reaction. Viscosities of styrene solutions of the polyesters obtained showed a tendency to increase with increase in metal content. The styrene solutions could be cured to give metal‐containing cured polyester resins. The cured resins were evaluated for physical properties. Generally, Mg was more effective than Ca in improving the physical properties. Further, resistance to chemical attack and boiling water and thermal behavior were also discussed.