A star-shaped polycation-based compound and its preparation method and application
A polycation and compound technology, applied in the field of star-shaped polycation-based compounds and their preparation, can solve the problems of low anti-swelling rate, large dosage, and large formation damage.
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Embodiment 1
[0036] (1) Be that 20% methylamine aqueous solution (23.25g, wherein contain methylamine 4.65g, 0.15mol) and acidic catalyst (85%H 3 PO 4 , 0.30g), warming up to 40 ° C, dropwise added a mass fraction of 70% trimethylolpropane-three (3- aziridinyl propionate) aqueous solution (35.42g, which contains trimethylolpropane-three (3-Aziridinyl propionate) 21.25 g, 0.05 mol), the dropping time is 40 min. After the dropwise addition, the temperature was raised to 70° C. for 5 h.
[0037] (2) The above reaction solution was mixed with K 2 CO 3 Adjust to weakly alkaline (pH=9~10), under the protection of nitrogen, add dropwise a 60% mass fraction of methyl chloride ethanol solution (25.25g, which contains 15.15g of methyl chloride, 0.30mol), and react at 50°C for 10h ; After the reaction, the insoluble matter was removed, the reaction solution was concentrated, the product was purified by toluene column chromatography, and the product was vacuum-dried to constant weight to obtain th...
Embodiment 2
[0043] (1) It is 70% ethylamine aqueous solution (9.54g, wherein containing ethylamine 6.75g, 0.15mol) and acidic catalyst (85%H 3 PO 4, 0.30g), warming up to 50 ° C, dropwise adding a mass fraction of 70% trimethylolpropane-three (3- aziridinyl propionate) aqueous solution (35.42g, which contains trimethylolpropane-three (3-Aziridinyl propionate) 21.25 g, 0.05 mol), the dropping time is 40 min. After the dropwise addition was completed, the temperature was raised to 70° C. for 7 h.
[0044] (2) The above reaction solution was mixed with K 2 CO 3 Adjust to weakly alkaline (pH = 9 ~ 10), under the protection of nitrogen, dropwise add benzyl chloride ethanol solution (47.48g, containing 37.98g, 0.30mol) of benzyl chloride with a mass fraction of 80%, at 70°C React for 16 hours; remove the insoluble matter after the reaction, concentrate the reaction solution, purify and isolate the product by toluene column chromatography, and vacuum dry to constant weight to obtain the prod...
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