Four different condensed polynuclear aromatic (COPNA) resins were obtained by reacting different heavy residue oils with 1,4-benzenedimethanol and p-toluenesulfonic acid.

• 摘要以四种不同的油浆为原料，在酸性催化剂存在下，与对苯二甲醇反应，得到四种COPNA树脂。