A kind of polymerization method of naphthalimide fluorescent dye
A technology for polymerizing and fluorescent dyes, applied in the field of functional polymer material synthesis, can solve the problems of poor color fastness, high cost and difficult processing.
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[0019] Below in conjunction with embodiment the present invention is described in further detail.
[0020] Preparation of functional initiators:
[0021] With 4-bromonaphthalimide fluorescent dye starting material, there is a ready-made method for the preparation of this raw material compound, which will not be repeated here. The following are the specific preparation steps:
[0022] 1) Dissolve 4-bromonaphthalimide fluorescent dye in dioxane solvent, then add ethylenediamine, the molar ratio of fluorescent dye to butanediamine is 1:2, the weight of dye and dioxane The ratio is controlled in the range of 1:5 to 1:6, the temperature of the reaction solution is controlled in the range of 80 to 100°C under stirring, and the reaction time is 4 to 5 hours. After the reaction is completed, it is cooled to room temperature, and then poured into clean water to collect the precipitated substance Washing with clear water several times to remove unreacted ethylenediamine and solvent, an...
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