A kind of polymerization method of fluorescein dye
A high-molecularization and fluorescein technology, which is applied in the field of high-molecularization preparation of fluorescein dyes, can solve problems such as high cost, poor adaptability and diversity, and influence on polymerization reactions, and achieve high conversion rate, strong adaptability, and high-quality products. pure effect
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[0019] Below in conjunction with embodiment the present invention is described in further detail.
[0020] Preparation of functional initiators:
[0021] Using fluorescein dye as the starting material, this material has been commercialized, so its preparation has a ready-made method, which will not be repeated here. The following are the specific preparation steps:
[0022] 1) Dissolve 0.1mol of fluorescein dye in 200ml of N,N-dimethylformamide solvent, then add 0.1mol of triethylamine, gradually add 0.1mol of acryloyl chloride under stirring, control the temperature of the reaction solution at 30-35 ℃ range, the reaction time is 2 to 3 hours, after the reaction is completed, pour the reaction solution into clean water, collect the precipitated matter and wash it with clean water several times to remove triethylamine hydrochloride and solvent, filter and dry in vacuum to obtain fluorescein dye derivative;
[0023] 2) Dissolve the fluorescein dye derivative obtained in the pr...
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