1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, (2Z)-2-butenedioic acid, 2,5-furandione and 2,2'-oxybis(ethanol) 68189-49-1 Diethylene glycol, isophthalic acid, terephthalic acid, maleic anhydride, maleic acid