Production and preparation method of chlorinated rubber

[0016] Place the three-necked flask equipped with a condenser and agitator in an ice-water bath, first add sodium hypochlorite solution, start stirring, wait until the temperature drops to 0°C, then add tert-butanol and glacial acetic acid in sequence, wherein the molar ratio of sodium hypochlorite to tert-butanol is 1.4:1. After the reaction is complete, wash with 10% sodium carbonate solution to neutralize unreacted glacial acetic acid, and then wash with deionized water three times to remove unreacted raw materials. After drying with anhydrous calcium chloride, put it into a brown reagent bottle filled with anhydrous calcium chloride and store it in the refrigerator.

[0017] Dilute the original rubber solution of butadiene rubber with chloroform, the content of butadiene rubber is 3% (by mass), add the diluted butadiene rubber solution into a three-necked bottle, stir and heat to 60°C, and add chloroacetic acid. The temperature was raised to 70°C, and tert-butyl hypochlor...

[0020] Place the three-necked flask equipped with a condenser and agitator in an ice-water bath, first add sodium hypochlorite solution, start stirring, wait until the temperature drops to 0°C, then add tert-butanol and glacial acetic acid in sequence, wherein the molar ratio of sodium hypochlorite to tert-butanol is 1.2:1. After the reaction is complete, wash with 10% sodium carbonate solution to neutralize unreacted glacial acetic acid, and then wash with deionized water three times to remove unreacted raw materials. After drying with anhydrous calcium chloride, put it into a brown reagent bottle filled with anhydrous calcium chloride and store it in the refrigerator.

[0021] Dilute the original rubber solution of butadiene rubber with chloroform, the content of butadiene rubber is 2.5% (by mass), add the diluted butadiene rubber solution into a three-necked bottle, stir and heat to 60°C, and add chloroacetic acid. The temperature was raised to 70°C, and tert-butyl hypochl...

[0024] Place the three-necked flask equipped with a condenser and agitator in an ice-water bath, first add sodium hypochlorite solution, start stirring, wait until the temperature drops to 0°C, then add tert-butanol and glacial acetic acid in sequence, wherein the molar ratio of sodium hypochlorite to tert-butanol is 1.6:1. After the reaction is complete, wash with 10% sodium carbonate solution to neutralize unreacted glacial acetic acid, and then wash with deionized water three times to remove unreacted raw materials. After drying with anhydrous calcium chloride, put it into a brown reagent bottle filled with anhydrous calcium chloride and store it in the refrigerator.

[0025] Dilute the original rubber solution of butadiene rubber with chloroform, the content of butadiene rubber is 5% (by mass), add the diluted butadiene rubber solution into a three-necked bottle, stir, heat to 60°C, and add chloroacetic acid. The temperature was raised to 70°C, and tert-butyl hypochlorite...