Sulfonate-type anion dimeric surfactant and preparation method thereof

A Gemini surface, sulfonate-type technology, applied in chemical instruments and methods, dissolution, chemical/physical processes, etc., can solve the problems of large loss, low product yield and purity, and achieve good surface activity, yield and The effect of high purity and simple preparation process

Active Publication Date: 2016-03-30
WUHAN INSTITUTE OF TECHNOLOGY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent CN200510022477.0 reports a new type of bis-ether bis-benzene sulfonate gemini surfactant and its preparation method. The preparation process includes the reaction of long-chain brominated alkanes and bi

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  • Sulfonate-type anion dimeric surfactant and preparation method thereof
  • Sulfonate-type anion dimeric surfactant and preparation method thereof
  • Sulfonate-type anion dimeric surfactant and preparation method thereof

Examples

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Example Embodiment

[0030] Example 1:

[0031] A sulfonate type anionic gemini surfactant with ether oxygen bond in the link chain, where R=-CH 2 CH 2 -, n=2, bromoalkane is bromododecane, the preparation method includes the following steps:

[0032] (1) Synthesis steps of intermediate product 4-dodecyloxyphenol: mix hydroquinone and bromododecane at a molar ratio of 5:1, and add 2.5 times the amount of K bromododecane 2 CO 3 , Using N,N-dimethylformamide as a solvent to react at 150℃ for 4h. After the reaction is completed, pour it into 200 mL of 5% KOH aqueous solution, filter, wash with 50 mL of distilled water three times, then adjust to PH=7 with 30 mL of 5% dilute HCl, and finally wash with 50 mL of acetone to obtain 4-dodecyloxyphenol as a white solid , The yield is 90%.

[0033] (2) The synthesis step of the intermediate product 4-alkoxyphenol glycidyl ether: The obtained 4-dodecyloxyphenol and 1,4-dibromobutane are mixed at a molar ratio of 3:1, and 4- Dodecyloxyphenol and the same amount of ...

Example Embodiment

[0036] Example 2:

[0037] A sulfonate type anionic gemini surfactant with ether oxygen bond in the link chain, where R=-CH 2 CH 2 -, n=4, bromohexane is selected for bromoalkanes, and the preparation method includes the following steps:

[0038] (1) The synthesis step of intermediate product 4-hexaalkoxy phenol: mix hydroquinone and bromohexane at a molar ratio of 6:1, and add 3 times the amount of K 2 CO 3 , Using N,N-dimethylformamide as a solvent to react at 150℃ for 4h. After the reaction is completed, pour it into 200 mL of 5% KOH aqueous solution, filter, wash with 50 mL of distilled water three times, adjust to pH=7 with 30 mL of 5% dilute HCl, and finally wash with 50 mL of acetone to obtain 4-hexaalkoxyphenol as a white solid. The yield reached 87.58%.

[0039] (2) The synthesis step of the intermediate product 4-alkoxyphenol glycidyl ether: mix the obtained 4-hexaalkoxyphenol with 1,8-dibromooctane at a molar ratio of 5:1, and add 4-hexa Alkoxyphenol and the same amount ...

Example Embodiment

[0042] Example 3:

[0043] A sulfonate type anionic gemini surfactant with ether oxygen bond in the link chain, where R=-CH 2 CH 2 -, n=6, bromodecane is selected for bromoalkanes, and the preparation method includes the following steps:

[0044] (1) The synthesis step of intermediate product 4-decyloxyphenol: mix hydroquinone and bromodecane at a molar ratio of 4:1, and add 2 times the amount of K bromododecane 2 CO 3 , Using N,N-dimethylformamide as a solvent to react at 150℃ for 5h. After the reaction is completed, pour it into 200 mL of 5% KOH aqueous solution, filter, wash with 50 mL of distilled water three times, adjust to PH=7 with 30 mL of 5% dilute HCl, and finally wash with 50 mL of acetone to obtain 4-decyloxyphenol as a white solid. The yield reached 89.75%.

[0045] (2) The synthesis step of the intermediate product 4-alkoxyphenol glycidyl ether: mix the obtained 4-decyloxyphenol with 1,12-dibromododecane at a molar ratio of 6:1, and add 4- Decaalkoxyphenol equivalent...

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Abstract

The invention provides a sulfonate-type anion dimeric surfactant and a preparation method thereof. The preparation method comprises the following steps: performing a substitution reaction on hydroquinone and brominated alkanes so as to obtain 4-alkoxy phenol; performing a substitution reaction on 4-alkoxy phenol and dibromo alkane or dibromo-poly-dihydric alcohol to obtain 4-alkoxy phenol glycidyl ether; and performing a sulfonation reaction on 4-alkoxy phenol glycidyl ether and chlorosulfonic acid to obtain the dimeric surfactant. Raw materials adopted in the method are easily available; the preparation process is simple, the reaction product yield and the reaction product purity are relatively high, and the sulfonate-type anion dimeric surfactant has favorable surface activity.

Description

technical field [0001] The invention belongs to the technical field of surfactants, in particular to a sulfonate-type anionic gemini surfactant and a preparation method thereof. Background technique [0002] Surfactants are a large class of organic compounds that can effectively reduce surface and interfacial tension. Its application involves many fields such as detergent, cosmetics, tertiary oil recovery, textile, printing and dyeing, antisepsis, medicine, etc. It is known as "industrial monosodium glutamate". Gemini surfactants are a new class of surfactants that are formed by connecting two hydrophilic head groups and two hydrophobic tail groups through a spacer group at or near the hydrophilic head group. Compared with traditional surfactants, gemini surfactants have excellent properties such as the ability to efficiently reduce the surface tension of water, low critical micelle concentration (CMC), special rheological properties, and good synergistic effects with other...

Claims

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Application Information

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IPC IPC(8): B01F17/12B01F17/42C09K23/12C09K23/42
CPCC09K23/00
Inventor 刘治田王璇王成高翔
Owner WUHAN INSTITUTE OF TECHNOLOGY
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