Pan Drugs Ltd.

A new amine-terminated bismaleimide resin was prepared by the Michael addition reaction of N,N'-1,4-phenylene-bis(maleimide) (PBM) with tris(2-aminoethyl)amine (TREN) at 1:1 and 1:2 molar ratios in acetone at reflux temperatureThe resultant PBM-TREN oligoimides were characterized by elemental anal., IR spectroscopy, and thermogravimetry.These oligoimides were used to cure epoxy resin, namely di-glycidyl ether of bisphenol-A, and studied by differential scanning calorimetry (DSC).The unreinforced PBM-TREN-epoxy cured product was prepared and characterized.