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Diallyl monomer and polymer thereof and preparation method thereof

A diallyl monomer technology, applied in the field of diallyl monomer and its preparation, can solve the problems of poor temperature resistance and salt resistance, and achieve the effect of improving temperature resistance and salt resistance

Active Publication Date: 2013-11-06
CHINA PETROLEUM & CHEM CORP +1
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  • Description
  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of the existing diallyl monomers that the polymers comprising the monomers have poor heat resistance and salt resistance, and provide a polymer that comprises the monomers to have excellent temperature resistance. Salt-resistant diallyl monomer, method for preparing same, and polymer comprising same

Method used

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  • Diallyl monomer and polymer thereof and preparation method thereof
  • Diallyl monomer and polymer thereof and preparation method thereof
  • Diallyl monomer and polymer thereof and preparation method thereof

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preparation example Construction

[0025] The present invention also provides a method for preparing a diallyl zwitterionic monomer, wherein the method comprises:

[0026] 1) Under condensation reaction conditions, in the first organic solvent, in the presence of a polymerization inhibitor, make the compound shown in formula (III) and the compound shown in formula (IV) carry out condensation reaction, obtain the compound shown in formula (V) Compounds shown:

[0027]

[0028] Among them, R 1 for hydrogen or C 1 -C 4 An alkyl group; X is fluorine, chlorine, bromine or iodine; the first organic solvent is one or more of tetrahydrofuran, acetone, ether and propanol.

[0029] 2) Under the quaternization reaction conditions, in the second solvent, in the presence of an inert atmosphere and a polymerization inhibitor, the compound shown in formula (V) is condensed with the compound shown in formula (VI), to obtain formula Compound shown in (VII):

[0030]

[0031] Among them, R 2 C without hydroxyl substi...

preparation Embodiment 1

[0051] A reactor with thermometer, condenser, mechanical stirrer and nitrogen inlet and outlet was used.

[0052] (1) With tetrahydrofuran (Beijing Chemical Plant, analytically pure) as solvent, add propylamine (Tianjin Guangfu Fine Chemical Research Institute, 99.5%) and 3-chloropropene (Baling Petrochemical , 97%) and polymerization inhibitor p-hydroxyanisole (Beijing chemical plant, 99.8%), relative to the propylamine of 100 weight parts, the consumption of tetrahydrofuran is 300 weight parts, and the consumption of p-hydroxyanisole is 0.1 weight part, Stir evenly at room temperature at 20°C, then reflux at 50°C, react for 20 hours, neutralize with an aqueous solution of sodium hydroxide having an equimolar concentration of propylamine of 50% by weight, and separate the oil-water phase with a separatory funnel to obtain The organic phase was rotatively evaporated at 50°C to remove the solvent to obtain a light yellow substance, which was extracted 5 times with anhydrous eth...

preparation Embodiment 2

[0056] A reactor with thermometer, condenser, mechanical stirrer and nitrogen inlet and outlet was used.

[0057] (1) With tetrahydrofuran (Beijing Chemical Plant, analytically pure) as solvent, add ethylamine (Tianjin Guangfu Fine Chemical Research Institute, 99.5%) and 3-chloropropene (baling Petrochemical, 97%) and polymerization inhibitor p-hydroxyanisole (Beijing chemical plant, 99.8%), relative to the ethylamine of 100 weight parts, the consumption of tetrahydrofuran is 400 weight parts, and the consumption of p-hydroxyanisole is 0.4 weight Stir evenly at room temperature at 20°C, then reflux at 45°C, react for 18 hours, neutralize with a 50% by weight aqueous sodium hydroxide solution with an equimolar concentration of ethylamine, and use a separatory funnel to separate the oil-water phase , the obtained organic phase was rotatively evaporated at 50°C to remove the solvent to obtain a light yellow substance, which was extracted 5 times with anhydrous ether, dried in vac...

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Abstract

The invention provides a diallyl monomer and a preparation method thereof, and also a polymer containing the diallyl monomer. The diallyl monomer provided by the invention contains a betaine structure, wherein the betaine is an amphoteric ion compound; the same monomer contains positive and negative charges and when the charge numbers are the same, the monomer is electric neutral. The structure is introduced to the diallyl monomer to form a polymer which has an antipolyelectrolyte performance such that the temperature resistance and the salt resistance of the polymer are obviously raised.

Description

technical field [0001] The invention relates to a diallyl monomer and a preparation method thereof, and also relates to a polymer of the monomer. Background technique [0002] Diallyl monomer is a water-soluble monomer with non-conjugated diene bonds. It can form cationic or zwitterionic polymers through homopolymerization or copolymerization with other monomers. This polymer is widely used at home and abroad. It is used in industrial fields such as oil exploration, papermaking, textile printing and dyeing, and water treatment. [0003] Diallyl quaternary ammonium salt monomer molecules can generate linear polymers containing five-membered rings or six-membered rings according to the chain growth mechanism of intramolecular ring formation and intermolecular growth under free radical initiation, thereby introducing ring structures. Polymer backbone, the formed polymer has excellent thermal stability and high glass transition temperature (Lee h.j.Cyclopolymerization part XXXI...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C309/14C07C303/32C08F126/04
Inventor 魏小林赵冬刘晓光祝纶宇伊卓杜凯计文希
Owner CHINA PETROLEUM & CHEM CORP
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