The current topical areas focus on the rigid aromatic multicarboxylate ligands, such as benzene dicarboxylicacid and benzene tricarboxylic acid.
目前，这方面的研究主要集中在如苯二甲酸，均苯三甲酸等刚性芳香多羧酸配体。
2
The wholly aromatic four-component copolyesters were prepared from p-acetoxy-benzoic acid, hydroquinone diacetate, 2,6-naphthalene dicarboxylic acid and isophthalic acid by melting polycondensation.