A kind of isooctylhydrazide sodium sulfonate initiator and preparation method thereof
A technology of sodium isooctanohydrazide sulfonate and initiator, applied in the preparation of hydrazide, sulfonic acid, organic chemistry, etc., can solve problems such as limiting chemical design, and achieve low energy consumption, high conversion rate, and high monomer concentration Effect
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[0017] Below in conjunction with embodiment the present invention is described in further detail.
[0018] Preparation of isooctylhydrazide sodium sulfonate initiator:
[0019] 1. Add isooctyl hydrazide and ethylene glycol bisglycidyl ether into absolute ethanol at a molar ratio of 2:1, and control the mass ratio of isooctyl hydrazide to absolute ethanol in the range of 1:3.5 to 1:4 ; Keep the temperature of the reaction solution in the range of 45-50°C under stirring, and the reaction time is 2-3 hours;
[0020] 2. Add propane sultone in equimolar amount to the used isooctylhydrazide to the above reaction liquid, react at 25-30°C for half an hour, then add solid NaOH in equimolar amount to propane sultone, Continue to stir and react at 45-50°C for 2-3 hours, and cool the reaction solution to room temperature after all NaOH is dissolved;
[0021] 3. Concentrate the above reaction solution with a rotary evaporator to remove ethanol, and finally obtain a white solid, which is ...
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