The poly(urethane-imide) (PUI) which uses isophorone diisocyanate, dispersed red 19 (DR-19), and pyromellitic dianhydride is synthesized.

• 以异佛尔酮二异氰酸酯，分散红-19和均苯四甲酸二酐合成聚氨酯-酰亚胺（PUI）；