Synthesis and properties of unsaturated epoxyfumarate resins

Synthesis and properties of epoxyfumarate and epoxymaleate resins obtained by the addition of acidic ester of maleic acid to the commercially availabl e resin, Epidian 5, is presented. In acidic ester preparation, n-hexanol wa s used. The resins were synthesized in one- and two-step procedures. In the two-step procedure, acidic hexyl maleate was synthesized separately and th en used for the addition reaction with epoxy resin. In the one-step synthes is, acidic ester was formed during the synthesis process. Properties of the obtained resins were compared. (C) 2000 John Wiley & Sons, Inc.