A kind of gemini type cationic surfactant initiator and preparation method thereof
A technology of surface activity and initiator, applied in the field of polymer material synthesis, can solve the problems of insufficient adaptability of block polymers, inability to achieve cross-phase polymerization, and inability to promote in large quantities, and achieve fast polymerization reaction, high conversion rate, The effect of mild and controllable reaction conditions
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[0019] Below in conjunction with embodiment the present invention is described in further detail.
[0020] Preparation of Gemini Cationic Surface Active Initiator:
[0021] 1. Mix and dissolve octyl glycidyl ether and ethylenediamine in absolute ethanol at a molar ratio of 2:1 as much as possible, and control the weight ratio of octyl glycidyl ether to ethanol in the range of 1:2.5 to 1:3. Control the reaction temperature in the range of 25-30°C under stirring, and the reaction time in 5-6 hours;
[0022] 2. Add epichlorohydrin to the above reaction solution, the molar ratio of epichlorohydrin to octyl glycidyl ether should be controlled at 1:1 as much as possible, and the reaction temperature should be controlled in the range of 25-30°C under stirring. 4 hours;
[0023] 3. Add N-methylimidazole with the same molar number as the above-mentioned epichlorohydrin to the reaction solution, and gradually raise the reaction temperature from 50°C to 70°C under stirring, and keep it...
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