The invention discloses a preparation method of hydroxylated
perylene imide and application thereof. The preparation method comprises the following steps: weighing
perylene-3,4,9,10-tetracarboxylic dianhydride, trihydroxymethyl aminomethane and
zinc acetate in
mole ratio of 1 to (6-10) to 1 as raw materials, adding the raw materials into a reactor filled with N-methyl pyrrolidone, heating to 75-85 DEG C under the
nitrogen atmosphere, stirring and mixing for 15min, and then continuously warming to 150-160 DEG C, stirring and reacting for 15-17h to prepare a dark purple mixed liquid; leaching the deep purple mixed liquid, firstly washing the filtered substance for 3-5 times by use of
ethanol, and then placing the filtered substance in a
vacuum drying oven at 45-55 DEG C and
drying for 8-12h to obtain the purple
powder, namely, hydroxylated
perylene imide. Hydroxylated perylene
imide can be applied to the technical field of synthesis of high-performance shape-memory
polyurethane material. According to the method disclosed by the invention, the operation is simple, the used
reagent raw materials are conventional chemical raw materials, the cost is low, and the method is convenient for large-scale popularization; and the prepared hydroxylated perylene imide can be used for preparing the shape-memory
polyurethane material, and further broadens other application fields of perylene besides the dye field.