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Preparation method of cationic surfactant and application thereof

A surfactant and cation technology, applied in the direction of cationic surface active compounds, surface active detergent compositions, polymer surface active compounds, etc. Modified cellulose and other issues

Active Publication Date: 2020-08-11
GUANGZHOU LONKEY INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing dye-capturing agents are cationic surfactants, which are incompatible with anionic surfactants in detergents. During the washing process, anionic surfactants dominate, which directly leads to the formation of cationic surfactants and anionic surfactants. The salt is solubilized in the system, the consumed anionic surfactant affects the detergency of the detergent, and the reacted cationic surfactant loses the ability to capture dyes
[0003] The prior art has never reported that iodonium compounds can be used as cationic surfactants and are compatible with anionic surfactants, nor have they been reported that they can be applied to detergents, nor have they been reported that they can be applied to specific modified cellulose. During preparation, the modified cellulose can simultaneously have the effects of adsorbing dyes and antibacterial clothes

Method used

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  • Preparation method of cationic surfactant and application thereof
  • Preparation method of cationic surfactant and application thereof
  • Preparation method of cationic surfactant and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2-1

[0032] 1. Synthesis of (4-vinylphenyl-4'-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone

[0033] The monomer vinylpyrrolidone (NVP) is configured into an aqueous solution with a mass fraction of 45%, using a small amount of hydrogen peroxide (0.2% of NVP) as a catalyst, under the action of azobisisobutyronitrile (0.3% of NVP), in Initiate polymerization at 40-50°C, react for 2 hours, and the monomer polymerization conversion rate is 93-95%. Add the (4-vinylphenyl-4'-methylenecarboxyphenyl) iodonium (0.5% NVP) prepared in Example 1-1, react for 0.2 hours, and cap the polymer, (4-vinylphenyl-4'-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone is obtained.

[0034] Then add 0.2% ammonia water to the polymer to decompose the remaining azobisisobutyronitrile. The polymer is spray-dried under hot air at 120-135°C to obtain powdery (4-vinylphenyl-4'-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone. (4-vinylphenyl-4'-methylenecarboxy...

Embodiment 2-2

[0045] 1. Synthesis of (4-vinylphenyl-4'-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone

[0046] The monomer vinylpyrrolidone (NVP) was configured into an aqueous solution with a mass fraction of 50%. Use a small amount of hydrogen peroxide (0.3% NVP) as a catalyst, under the action of azobisisobutyronitrile (0.4% NVP), initiate polymerization at 50-60°C, react for 3 hours, and the monomer polymerization conversion rate is 96~98%.Add (4-vinylphenyl-4-methylenecarboxyphenyl) iodonium (consumption is 0.8% NVP) that embodiment 1-1 makes, react 0.5 hour, to polymer Capping is performed to obtain (4-vinylphenyl-4-methylenecarboxyphenyl)iodonium-blocked polyvinylpyrrolidone.

[0047] Add 0.3% ammonia water to the polymer to decompose the remaining azobisisobutyronitrile. The polymer is spray-dried under hot air at 135-150°C to obtain powdery (4-vinylphenyl-4-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone. (4-vinylphenyl-4'-methylenecarboxyphenyl)...

Embodiment 2-3

[0053] 1. Synthesis of (4-vinylphenyl-4'-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone

[0054] The monomer vinylpyrrolidone (NVP) was configured into an aqueous solution with a mass fraction of 55%. Use a small amount of hydrogen peroxide (0.4% NVP) as a catalyst, under the action of azobisisobutyronitrile (0.5% NVP), initiate polymerization at 60-70 ° C, react for 4 hours, the monomer polymerization conversion rate is 97 ~99%. Add the (4-vinylphenyl-4-methylenecarboxyphenyl) iodonium (amount of 1% NVP) obtained in Example 1-2, react for 0.6 hours, and cap the polymer to obtain (4-vinylphenyl-4-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone.

[0055] Add 0.4% ammonia water to the polymer to decompose the remaining azobisisobutyronitrile. The polymer is spray-dried under hot air at 150-165°C to obtain powdery (4-vinylphenyl-4-methylenecarboxyphenyl)iodonium-terminated polyvinylpyrrolidone. (4-vinylphenyl-4'-methylenecarboxyphenyl) iodon...

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Abstract

The invention relates to a preparation method of a cationic surfactant. Wherein the cationic surfactant is (4-vinylphenyl-4'-methylene carboxyl phenyl)iodonium-terminated polyvinylpyrrolidone. The preparation method comprises the following steps: carrying out a polymerization reaction on a vinyl pyrrolidone aqueous solution under the action of a catalyst and an initiator, adding (4-vinylphenyl-4'-methylene carboxyl phenyl)iodonium, and carrying out end capping and drying to obtain the product. The cationic surfactant can be compatible with an anionic surfactant. The invention also discloses apreparation method of the cationic surfactant. The cationic surfactant can be applied to preparation of specific modified cellulose, and the modified cellulose can have the effects of adsorbing dyes and inhibiting bacteria of clothes at the same time.

Description

technical field [0001] The invention belongs to the field of textile engineering, in particular to a preparation method and application of a cationic surfactant, in particular to (4-vinylphenyl-4'-methylenecarboxyphenyl)iodonium-terminated polyethylene Preparation method and application of pyrrolidone. Background technique [0002] Existing dye capture agents are cationic surfactants, which are incompatible with anionic surfactants in detergents. During the washing process, anionic surfactants dominate, which directly leads to the formation of cationic surfactants and anionic surfactants. The salt is solubilized in the system, the consumed anionic surfactant affects the detergency of the detergent, and the reacted cationic surfactant loses the ability to capture dyes. [0003] The prior art has never reported that iodonium compounds can be used as cationic surfactants and are compatible with anionic surfactants, nor have they been reported that they can be applied to deterg...

Claims

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Application Information

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IPC IPC(8): C08F126/10C08F2/38C08G81/02C08B15/06B01F17/32C11D1/58C11D1/65B01J20/26B01J20/30C09K23/32
CPCC08F126/10C08G81/02C08B15/06C11D1/58C11D1/65C11D1/008B01J20/265C09K23/16C08F2/38
Inventor 蔡熙扬卢志敏郭晓丹刘保陈奕何辉张世林潘宇鹏黄煜璇戴殷
Owner GUANGZHOU LONKEY INDAL
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