The condensed polynuclear aromatic (COPNA) resin is synthesized using coal tar pitch as monomer and p-methyl benzaldehyde (PMB) as cross-linking agent in the presence of ptoluene sulfonic acid.

• 摘要以煤沥青为单体、对甲基苯甲醛(PMB)为交联剂，在对甲苯磺酸的催化作用下合成缩合多核芳烃(COPNA)树脂。