Active bio-based chlorine-containing s-triazine type macromolecular dye preparation method
A macromolecular dye and bio-based technology, which is applied in the field of preparation of active bio-based chlorine-containing s-triazine-type macromolecular dyes, can solve the problems of being unable to be used as a macromolecular colorant and having no color, so as to improve the brightness of the coating, Good heat resistance, deep color effect
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[0031] Example 1
[0032] First add cyanuric chloride and stir evenly with water, add the prepared 15% soda ash to adjust the pH to about 8.0, and then add the refined small molecule dye precursor formula (1), where the cyanuric chloride and the small molecule dye precursor are moles The ratio is 0.95:1, the temperature is increased to 75-80℃, and the pH=5.0~6.0 is maintained for 4-6h to obtain dichloros-triazine dye monomer. After washing with 80℃ warm water, it is dried at 100℃ Use DMF-H again 2 After O recrystallization and refining, pure dye monomer can be obtained.
[0033] 1g of the dye monomer and 10g of chitosan compound synthesized above are reacted in DMF phase at 50°C for 5h, and then water is added to precipitate and filter to obtain the final product.
Example Embodiment
[0034] Example 2
[0035] First add cyanuric chloride and stir evenly with water, add the prepared 15% soda ash water to adjust the pH to about 8.0, and then add the refined small molecule dye precursor formula (2), where the cyanuric chloride and the small molecule dye precursor are moles The ratio is 0.95:1, the temperature is increased to 75-80℃, and the pH=5.0~6.0 is maintained for 4-6h to obtain dichloros-triazine dye monomer. After washing with 80℃ warm water, it is dried at 100℃ Use DMF-H again 2 After O recrystallization and refining, pure dye monomer can be obtained.
[0036] Combine the 1g dye monomer synthesized above and 10gH 2 N-PEG-NH 2 (α,ω-diaminopolyethylene glycol amine, molecular weight 1000), react in the water phase at 50°C for 10h, then add water to precipitate and filter to obtain the final product.
Example Embodiment
[0037] Example 3
[0038] First add cyanuric chloride and stir evenly with water, add the prepared 15% soda ash to adjust the pH to about 8.0, and then add the refined small molecule dye precursor formula (7), where the cyanuric chloride and the small molecule dye precursor are moles The ratio is 0.95:1, the temperature is increased to 75-80℃, and the pH=5.0~6.0 is maintained for 4-6h to obtain dichloros-triazine dye monomer. After washing with 80℃ warm water, it is dried at 100℃ Use DMF-H again 2 After O recrystallization and refining, pure dye monomer can be obtained.
[0039] Combine the synthesized 1g fluorescent dye monomer and 10gH 2 N-PEG-NH 2 (α,ω-diaminopolyethylene glycol amine, molecular weight 2000), reacted in the water phase at 50°C for 10h, then filtered and dried to obtain the final product.
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