As the isocyan group is polymerized further, diphenyl carbondiimine may be formed, further polymerization of which forms a nitrogen-containing polycyclic aromatic compound.
异氰基化合物进一步二聚成二苯基碳化二亚胺，
者又聚合生成含氮杂环的
环芳烃。
的环芳烃；稠环芳烃As the isocyan group is polymerized further, diphenyl carbondiimine may be formed, further polymerization of which forms a nitrogen-containing polycyclic aromatic compound.
异氰基化合物进一步二聚成二苯基碳化二亚胺，者又聚合生成含氮杂环的环芳烃。
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