Tertiary copolymerized high-molecular-weight compound and preparation method and use
A technology of polymer compounds and terpolymers, applied in the field of coal-water slurry additives, can solve the problems of poor adaptability and poor stability of coal-water slurry, and achieve the effects of low cost, improved interface compatibility and strong adaptability
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Embodiment 1
[0025] Put 10.3g of sodium dodecylbenzene sulfonate and 551ml of water in a 4000ml four-necked flask, pass nitrogen gas for 3 minutes, add 67.3g of styrene and 300g of maleic acid while stirring, heat to 50°C, and slowly Add 0.7g of refined potassium persulfate-sodium bisulfite initiator solution. React at 50-60°C for 4h, then raise the temperature to 70°C for 1h. After cooling, pour the intermediate product into a separatory funnel equipped with benzene and water, shake it repeatedly, and after standing for several hours, transfer the water phase to a 2000ml four-necked flask, add 30ml 6molk concentrated hydrochloric acid, 10ml chloromethyl ether and 20ml Saturated zinc chloride solution. Slowly add 5g of 37% formaldehyde solution while stirring, and react for 1.5h to obtain a chloromethylated binary copolymer. Adjust the temperature to 90°C, slowly add 205g of 37% formaldehyde solution and 400g of naphthalenesulfonic acid solution while stirring, react for 8 hours, filter ...
Embodiment 2
[0027] Add 100ml of toluene and 19.6g of maleic anhydride successively into a 250ml three-necked flask, heat and stir to dissolve them.
[0028] At room temperature, add 3g sodium dodecylbenzenesulfonate, 31.2g styrene, 0.41g azobisisobutyronitrile and 30ml toluene to a 100ml clean Erlenmeyer flask successively, shake well, transfer to 100ml drop solution in the funnel.
[0029] Raise the temperature in the three-necked bottle to 80°C, and add the mixed solution in the dropping funnel dropwise while stirring, and the dropwise addition is completed in about 30 minutes. At 80°C, react for another 2.5h, stop heating, cool to room temperature, filter with suction, wash the white powdery solid with petroleum ether three times, transfer it to a watch glass, and vacuum dry at 40°C for 12h to obtain a white powder Solid 30.6g.
[0030] In a 100ml round bottom flask, add 10g of the above white powder solid, then add 4ml of concentrated hydrochloric acid and 6g of saturated ZnCl 2 -T...
Embodiment 3
[0034] Put 13.8g of sodium dodecylbenzene sulfonate and 740ml of water in a 2000ml four-necked flask, pass nitrogen gas for 3 minutes, add 330g of styrene and 198.6g of acrylic acid or 237.2g of methacrylic acid while stirring, heat to 50°C, and Slowly add 1g of refined potassium persulfate-sodium bisulfite initiator solution while stirring, react at 50-60°C for 6h, then raise the temperature to 70°C and react for 1h, after cooling, pour the intermediate product into a separator containing benzene and water In the liquid funnel, shake repeatedly, after standing still for several hours, move the water to a 4000ml four-necked flask, add 30ml 6mol / L concentrated hydrochloric acid, 10ml chloromethyl ether and 20ml saturated zinc chloride solution, slowly add 5g37% formaldehyde solution, reacted for 1.5h, and obtained a chloromethylated binary copolymer. Adjust the temperature to 90°C, slowly add 205g of 37% formaldehyde and 400g of naphthalenesulfonic acid solution while stirring,...
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