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
一步二聚成二苯基碳化二亚胺，
者又聚生成含氮杂环的多环
。
；稠环As the isocyan group is polymerized further, diphenyl carbondiimine may be formed, further polymerization of which forms a nitrogen-containing polycyclic aromatic compound.
异氰基化一步二聚成二苯基碳化二亚胺，者又聚生成含氮杂环的多环。
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