Alkylbenzyl polyoxyethylene ether betaine surfactant and its preparation method and use

A technology of alkyl benzyl polyoxyethylene ether and surfactant, which is applied in the field of alkyl benzyl polyoxyethylene ether betaine surfactant and its preparation, and can solve the problem that does not involve alkyl benzyl polyoxyethylene ether beet Alkaline surfactants and other problems, to achieve excellent synergistic effect, low irritation, excellent antistatic effect

Active Publication Date: 2013-03-20
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CN 1566256A suggests alkyl aryl alkyl betaine type surfactant composition and its application in tertiary oil recovery, but does not relate to alkyl benzyl polyoxyethylene ether betaine surfactant

Method used

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  • Alkylbenzyl polyoxyethylene ether betaine surfactant and its preparation method and use
  • Alkylbenzyl polyoxyethylene ether betaine surfactant and its preparation method and use
  • Alkylbenzyl polyoxyethylene ether betaine surfactant and its preparation method and use

Examples

Experimental program
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Effect test

Embodiment 1 10

[0057] The preparation of embodiment 1 dodecyl benzyl trioxyethylene ether carboxylate betaine

[0058] Step 1: Weigh 0.1mol of trimethylamine hydrochloride into a 100ml three-neck flask, add 0.2mol of anhydrous aluminum trichloride to the reaction flask in batches under constant stirring at room temperature, and heat up to 80°C after the addition is complete. Continue the constant temperature reaction for 5 hours to obtain black N(CH 3 ) 3 HCl 2AlCl 3 ionic liquid.

[0059] Second step: get 6.4mol benzene and join in the 1000ml three-neck bottle that is equipped with reflux condenser, electric stirrer, constant pressure addition funnel, add 13g N(CH 3 ) 3 HCl 2AlCl 3 For ionic liquids, heat the system temperature to about 40°C, then add 0.8mol α-dodecene into the reaction system drop by drop with a constant pressure feeding funnel under constant stirring, and continue the constant temperature reaction for 5 hours after the completion of the reaction. Stand for stratific...

Embodiment 2

[0068] Technical scheme is basically the same as embodiment 1, just replaces alpha-dodecene with alpha-tetradecene in the second step, obtains tetradecylbenzene, and corresponding tetradecylbenzyl chloride replaces dodecylbenzyl chloride, ten Tetraalkylbenzyl trioxyethylene ether alcohol instead of dodecyl benzyl trioxyethylene ether alcohol, chlorinated tetradecyl benzyl trioxyethylene ether alcohol instead of chlorinated dodecyl benzyl trioxyethylene ether alcohol , tetradecyl benzyl trioxyethylene ether tertiary amine replaces dodecyl benzyl trioxyethylene ether tertiary amine, other conditions and operating methods are the same as in Example 1, and the product obtained is tetradecyl benzyl trioxyethylene ether Betaine vinyl ether carboxylate. Its IR spectrum is shown in Figure 4 .

Embodiment 3

[0070] Technical scheme is basically the same as embodiment 1, just replaces alpha-dodecene with alpha-hexadecene in the second step, obtains hexadecylbenzene, and corresponding hexadecylbenzyl chloride replaces dodecylbenzyl chloride, ten Hexaalkylbenzyl trioxyethylene ether alcohol instead of dodecyl benzyl trioxyethylene ether alcohol, chlorinated hexadecyl benzyl trioxyethylene ether alcohol instead of chlorinated dodecyl benzyl trioxyethylene ether alcohol , Cetyl benzyl trioxyethylene ether tertiary amine replaces dodecyl benzyl trioxyethylene ether tertiary amine, other conditions and operating methods are the same as in Example 1, and the product obtained is cetyl benzyl trioxyethylene Betaine vinyl ether carboxylate. intermediate of hexadecylbenzene 1 H-NMR spectrum see Figure 5 , the intermediate of cetyl benzyl trioxyethylene ether alcohol 1 H-NMR spectrum see Figure 6 , the intermediate of cetyl chloride benzyl trioxyethylene ether alcohol 1 H-NMR spectrum s...

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Abstract

The invention relates to an alkylbenzyl polyoxyethylene ether betaine surfactant and its preparation method and use. The alkylbenzyl polyoxyethylene ether betaine surfactant is a zwitterionic surfactant. Alkyl benzene undergoes a series of reactions to produce the alkylbenzyl polyoxyethylene ether betaine surfactant. Through a unique molecular structure, the alkylbenzyl polyoxyethylene ether betaine surfactant has excellent water-solubility, water hardening resistance, a wide pH application scope, low toxicity, good degradability, and good compatibility with other types of surfactants, can be used for fields of washing, weaving and tertiary oil recovery, has high activity, a critical micelle concentration of 10<-5> to 10<-6>mol/L, and surface tension of 23 to 30mN/m at the critical micelle concentration. Through alone use or compounding with other auxiliaries, the alkylbenzyl polyoxyethylene ether betaine surfactant can form ultralow interfacial tension having the magnitude of 10<-3>mN/m with simulated oil alkane or crude oil and can be used in tertiary oil recovery. The alkylbenzyl polyoxyethylene ether betaine surfactant has a structural formula shown in the patent specification.

Description

technical field [0001] The invention belongs to the field of high-efficiency surfactants, in particular to an alkyl benzyl polyoxyethylene ether betaine surfactant as a zwitterionic surfactant, a preparation method and application thereof. Background technique [0002] Alkyl betaine surfactants are a class of amphoteric surfactants with excellent performance. The amphoteric surfactants have good wetting and emulsifying properties, low toxicity, easy biodegradation, high temperature and high salt resistance, and excellent Synergistic effect, excellent antistatic properties, mature production process, simple equipment, widely used in shampoos, foam baths, textile finishing agents, foam drilling agents, disinfectants, gel emulsifiers and metal preservatives. [0003] In the alkyl benzyl polyoxyethylene ether betaine surfactant, the introduction of oxyethylene units can increase the hydrophilicity and salt resistance of the surfactant, while the introduction of the aryl group in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/46C07C217/08C07C213/00C07C309/08C07C303/32C08G65/48C09K8/584C09K23/46
Inventor 赵濉董林芳徐志成李振泉曹绪龙宋新旺张继超
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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