Bi-benzene-sulfonate interface initiator and preparing method thereof
A bis-benzenesulfonate and bis-benzenesulfonate technology, applied in the field of polymer material synthesis, can solve the problems of insufficient block polymer functionality, inability to achieve cross-phase polymerization, insufficient improvement of initiators, etc., to achieve polymerization Fast, high conversion rate, mild and controllable effect
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[0019] Below in conjunction with embodiment the present invention is described in further detail.
[0020] The preparation of bis-benzenesulfonate interfacial initiator:
[0021] 1. Mix and dissolve dodecylamine and epichlorohydrin in absolute ethanol as far as possible according to the molar ratio of 2:1. The weight ratio of dodecylamine to ethanol is controlled in the range of 1:4.5 to 1:5. Control the reaction temperature in the range of 50-60°C, and the reaction time is 3-4 hours. After the reaction is completed, cool to room temperature, add solid NaOH, and stir continuously to dissolve NaOH;
[0022] 2. Add epichlorohydrin to the above reaction liquid again, and control the molar ratio of epichlorohydrin to dodecylamine at 1:1 as much as possible, and control the reaction temperature in the range of 25-30°C under stirring, and react for 10-12 Cool to room temperature after 1 hour;
[0023] 3. Add solid NaOH and sodium p-hydroxybenzenesulfonate with the same number of m...
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