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Metal‐containing cured polyesters from divalent metal salts of mono(hydroxyethyl) phthalate, bisester anhydrides, and monoepoxide
Author(s) -
Matsuda Hideaki
Publication year - 1978
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.1978.070221203
Subject(s) - phthalate , polyester , metal , polymer chemistry , divalent metal , chemistry , divalent , materials science , organic chemistry
Synthesis of novel metal‐containing cured polyesters was investigated by the reaction of divalent metal salts of mono(hydroxyethyl) phthalate–bisester anhydride–monoepoxide. As the bisester anhydride, ethylene glycol bis(trimellitate) dianhydride (ETDA), diethylene glycol bis(trimellitate) dianhydride (DETDA), and polyethylene glycol bis(trimellitate) dianhydride (PETDA) were used. They were prepared from trimellitic anhydride and glycols. Phenyl glycidyl ether was the monoepoxide used. In the reactions, the Mg salt showed considerably higher catalytic activities than the Ca salt. As for the physical properties of the cured resins, heat distortion temperature, Rockwell hardness, and compressive strength decreased in the order ETDA > DETDA > PETDA. Generally, the resins containing Mg showed better physical properties than those containing Ca. Resistance to chemical attack and boiling water, thermal behavior, and electrical resistances are also discussed.