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

Inactive Publication Date: 2005-03-16
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above situation, the present invention solves the problem that currently there is no low-cost ethylene production by-product C 9 To deal with the problem of ternary copolymerization with maleic anhydride and acrylic acid or acrylamide, a new product with stable performance and efficient scale inhibition performance - water-soluble C 9 Petroleum resin terpolymer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention discloses a biodegradable temperature-sensitive hydrogel and method for preparing same which comprises, preparing microporous konjak gluglucosan aquogel, dissolving refined konjaku flour into distilled water, agitating, charging inorganic solvent, adjusting pH, carrying out crossbridging under a controlled temperature and time, water scrubbing the product yield, repeated frost thawing, freeze-drying, then swelling the konjak gluglucosan gel into the aqueous solution of N-isopropyl acrylamide, cross linking agent, and initiating agent, carrying out polymerization under a controlled temperature and time, and water scrubbing the obtained outcome yield.

Description

technical field [0001] The invention belongs to the production of by-product C utilizing cheap ethylene 9 (mainly composed of dicyclopentadiene and its homologues) to synthesize water-soluble C with scale-inhibiting properties 9 Petroleum resin terpolymer and its preparation method. Specifically related to ethylene production by-product C 9 Under the action of chain transfer agent and initiator, it undergoes radical copolymerization with maleic anhydride and acrylic acid or acrylamide to make C with scale-inhibiting properties. 9 Water-soluble terpolymers and methods. Background technique [0002] Petroleum resin is a by-product of ethylene plant C 5 、C 9 Distillate is the main raw material, and it is polymerized in the presence of a catalyst, or it is a thermoplastic resin obtained by copolymerizing it with aldehydes, aromatic hydrocarbons, and terpenes. In order to continuously improve the quality of petroleum resin and broaden its application fields, Japan, European...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F240/00
Inventor 阎卫东张旭王芳李贺新李海清石金永沈晓莉
Owner HEBEI UNIV OF TECH
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