Water soluble C#-[9] petroleum resin terpolymers with scale-inhibiting property and preparation process thereof
A technology of terpolymer and petroleum resin, which is applied in the field of water-soluble C9 petroleum resin terpolymer and its preparation, to achieve the effect of expanding the application field, simple synthesis process and high value
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Embodiment 1
[0046] ·C 9 Oil as ethylene production by-product C 9 Oil, distilled under reduced pressure, cut off 38~120℃ distillate.
[0047] ·Synthesis of copolymer
[0048] At room temperature, weigh C 9 Distillate 22.010g, maleic anhydride 11.126g, and chain transfer agent dodecyl mercaptan 0.343g were added to a 100mL four-neck flask equipped with a reflux device and a thermometer, stirred, and heated to 70°C in a water bath. Add 8.176g of acrylic acid, 34.302g of solvent methyl ethyl ketone, and 1.029g of initiator azobisisobutyronitrile into a 100mL dropping funnel, and dropwise add them into a four-necked bottle. The dropping time is controlled, and the dropping is completed within 2 hours. The reaction was carried out at a constant temperature of 70° C. for 10 hours. After the reaction, the reaction product was poured into a beaker containing 250 mL of petroleum ether as a precipitating agent for precipitation and washing. The precipitate was filtered and dried under vacuum a...
Embodiment 2
[0054] ·Synthesis of copolymer
[0055] At room temperature, weigh C 9 Distillate 22.010g, maleic anhydride 11.126g, and n-butanethiol 0.686g were added to a 100mL four-necked flask equipped with a reflux device and a thermometer, stirred, and heated to 70°C in a water bath. Add 8.176g of acrylic acid, 34.302g of methyl ethyl ketone, and 1.372g of initiator azobisisobutyronitrile into a 100mL dropping funnel, and add them dropwise into a four-necked bottle. The dropping time is controlled, and the dropping is completed within 40 minutes. React at a constant temperature of 70°C for 6 hours. After the reaction, the reaction product was poured into a beaker filled with 250 mL of petroleum ether for precipitation and washing. The precipitate was filtered and dried under vacuum at 80° C. for 6 hours.
[0056] The conversion rate of the copolymerization product is: 79.2%, and the intrinsic viscosity is: 0.082dL / g.
[0057] · Copolymer hydrolysis
[0058] Weigh 10g of terpolymer...
Embodiment 3
[0062] ·Synthesis of copolymer
[0063] At room temperature, weigh C 9 Distillate 22.010g, maleic anhydride 11.126g, chain transfer agent dodecyl mercaptan 3.087g were added to a 100mL four-necked flask equipped with a reflux device and a thermometer, stirred, and heated to 70°C in a water bath. Add 8.176g of acrylic acid, 34.302g of methyl ethyl ketone, and 1.715g of initiator azobisisobutyronitrile into a 100mL dropping funnel, and add them dropwise into a four-necked bottle. The dropping time is controlled, and the dropping is completed within 40 minutes. React at a constant temperature of 70°C for 6 hours. After the reaction, the reaction product was poured into a beaker filled with 250 mL of petroleum ether for precipitation and washing. The precipitate was filtered and dried under vacuum at 80° C. for 6 hours.
[0064] The conversion rate of the copolymerization product is: 89.2%, and the intrinsic viscosity is: 0.014dL / g.
[0065] · Copolymer hydrolysis
[0066] We...
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