Hyperbranched polymer, preparation method and application thereof, and washing product

A technology of hyperbranched polymer and polymerization reaction, which is applied in chemical instruments and methods, detergent compositions, detergent compounding agents, etc. It can solve the problems of high equipment investment, complicated process, and long time-consuming, so as to reduce production costs , Low cost of raw materials, reduce the effect of equipment investment

Pending Publication Date: 2021-11-26
SHANGHAI CHANGFA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the high initiator cost, use of toxic solvents, complex process, high equipment investment, long time-consuming and product dispersion in the preparation of acrylic acid-maleic anhydride copolymer sodium salt in the prior art. In order to solve the defects of poor washing force and builder effect, a kind of hyperbranched polymer and its preparation method, application and washing product are provided

Method used

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  • Hyperbranched polymer, preparation method and application thereof, and washing product
  • Hyperbranched polymer, preparation method and application thereof, and washing product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] S1: Preparation of hyperbranched functional monomer A

[0052]Introduce nitrogen into the three-necked flask for 5 minutes, put 80g of methyl acrylate, 70g of trimethylolpropane and 60g of allylamine into the three-necked flask, add 1g of p-toluenesulfonic acid as a catalyst, and stir magnetically at 80°C Reflux reaction for 3 hours, after purification and filtration, the hyperbranched functional monomer A was obtained.

[0053] S2: Preparation of hyperbranched polymers

[0054] Add the hyperbranched functional monomer A prepared in S1, 90g deionized water, and 10g allyl alcohol polyoxyethylene ether into the reaction kettle, stir and raise the temperature to 70-80°C, and add 170g of acrylic acid and 50g of sodium persulfate dropwise at the same time The aqueous solution (mass fraction is 2%) and 50g sodium bisulfite aqueous solution (mass fraction is 5%), the dropwise addition time is 3h, after the dropwise addition is completed, the constant temperature reaction is c...

Embodiment 2

[0056] S1: Preparation of hyperbranched functional monomer A

[0057] S1 is the same as in Example 1.

[0058] S2: Preparation of hyperbranched polymers

[0059] Add the hyperbranched functional monomer A prepared in S1, 90g of deionized water, and 10g of prenol polyoxyethylene ether into the reaction kettle, stir and heat up to 70-80°C, and dropwise add 170g of acrylic acid and 50g of persulfuric acid Potassium aqueous solution (mass fraction is 2%) and 50g sodium metabisulfite aqueous solution (mass fraction is 5%), the dropwise addition time is 2h, after the dropwise addition is completed, the constant temperature reaction is carried out for 2h. After the reaction is finished, the temperature is lowered to about 50° C., neutralized to neutral with potassium hydroxide solution, and a hyperbranched polymer is obtained.

Embodiment 3

[0061] S1: Preparation of hyperbranched functional monomer A

[0062] S1 is the same as in Example 1.

[0063] S2: Preparation of hyperbranched polymers

[0064] Add the hyperbranched functional monomer A prepared in S1, 90g deionized water, and 10g methallyl polyoxyethylene ether into the reaction kettle, stir and raise the temperature to 70-80°C, and simultaneously add 170g of acrylic acid, 50g of Ammonium sulfate aqueous solution (2% by mass fraction) and 50 g sodium metabisulfite aqueous solution (5% by mass fraction) were added dropwise for 3 hours, and were reacted at constant temperature for 1 hour after the addition was completed. After the reaction, the temperature was lowered to about 50°C, and neutralized with liquid ammonia to obtain a hyperbranched polymer.

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Abstract

The invention discloses a hyperbranched polymer, a preparation method and application thereof, and a washing product. The preparation method of the hyperbranched polymer comprises the following steps: S1, in the presence of protective gas and under the catalytic action of a catalyst, acrylic ester, trimethylolpropane and allylamine react to generate a hyperbranched functional monomer A, and the catalyst is p-toluene sulfonic acid and / or toluene sulfonate, wherein the reaction temperature is 70-100 DEG C; s2, in the presence of an initiator and a reducing agent, polymerization reaction is carried out on the mixed monomer dispersed in the water phase, thereby obtaining the product, wherein the mixed monomer comprises a hyperbranched functional monomer A, unsaturated polyether and acrylic acid, and the temperature of the polymerization reaction is 60-90 DEG C. The hyperbranched polymer provided by the invention has the advantages of strong chelating force, dispersing force and alkali buffering force, better washing assisting performance, green and environment-friendly preparation process, cheap and easily available raw materials, no use of organic solvents, short process flow, low equipment investment and low production cost.

Description

technical field [0001] The invention relates to a hyperbranched polymer and its preparation method, application and washing product. Background technique [0002] Polycarboxylate polymers have excellent chelating and dispersing effects, and are widely used in the fields of detergents and water treatment. In the field of washing, they mainly have dispersing effects. When used as a detergent aid, it has the following characteristics: alkaline buffering effect, even if there is a small amount of acidic substances, due to the action of the aid, the pH of the washing liquid does not change significantly, and there is still a strong decontamination effect; it has the ability to make dirt Disperse in water and prevent dirt from reattaching and depositing on fabrics; polycarboxylate polymers have a large number of carboxylate groups on the side chains, so they have strong particle chelating ability and soften hard water ability. In view of the excellent cleaning performance of poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/06C08F220/06C08F220/34C11D3/37
CPCC08F283/065C11D3/3788C08F220/06C08F220/34
Inventor 施晓旦孔祥康尹东华
Owner SHANGHAI CHANGFA NEW MATERIAL CO LTD
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