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A ferrocene-based dual-stimuli-responsive surfactant

A dual-stimuli-responsive, surfactant technology, applied in the field of ferrocene-based dual-stimuli-responsive surfactants, can solve the problems of particle surface wettability regulation and lack of regulation of hydrophobic groups, and achieve excellent surface chemical properties, The synthesis method is simple and the effect of good surface properties

Active Publication Date: 2019-11-08
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, stimuli-responsive surfactants such as pH, temperature, and oxidation-reduction control the switch between the "on" and "off" states of the hydrophilic group, and its hydrophobic group lacks regulation, so it cannot regulate its self-organized structure. , the wettability of the particle surface, etc. for finer regulation

Method used

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  • A ferrocene-based dual-stimuli-responsive surfactant
  • A ferrocene-based dual-stimuli-responsive surfactant
  • A ferrocene-based dual-stimuli-responsive surfactant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: the synthesis of 12-alkyl tertiary amino ferrocene surfactant

[0031] First add 12.0539g of ferrocene and 19.0338g of anhydrous aluminum chloride into the three-necked flask, and add 50mL of dichloromethane as a solvent. Dissolve 16.7706g of 11-tertiary amine undecanoyl chloride in 30mL of dichloromethane, transfer it to a constant pressure funnel, and slowly add the 11-tertiary amine undecanoyl chloride solution dropwise to the three-necked flask. After the addition is complete, raise the reaction temperature to room temperature, react overnight, and remove the solvent after the reaction to obtain the acylated product. The acylated product was reduced with lithium aluminum hydride in ether solution. After 20 hours of reaction, the solvent was removed to obtain the reduced product. The reduced product was added to water, and carbon dioxide was introduced to obtain the surface of 12-alkyl tertiary aminoferrocene bicarbonate. active agent.

Embodiment 2

[0032] Example 2: 12-Alkyl Tertiary Amino Ferrocene Surfactant Foam

[0033] 12-Alkyl tertiary amino ferrocene surfactant is dissolved in water, and foam is obtained by shaking, as shown in the figure attached image 3 Introduce CO to the surfactant foam 2 and N 2 Subsequent changes are shown in Fig. Figure 4 Changes that occur when hydrogen peroxide is added to this surfactant foam.

Embodiment 3

[0034] Embodiment 3: 12-alkyl tertiary amino ferrocene surfactant emulsion

[0035] at 5cm 3 2×10 -3 In the 12-alkyl tertiary amino ferrocene surfactant aqueous solution of mol / L, add 5g n-decane, homogenize 2min under the condition of 8000rpm with high-speed homogenizer, obtain this surfactant emulsion, this emulsion The solution has carbon dioxide-redox dual stimulus response properties. Such as Figure 5 Introduce CO into the surfactant emulsion 2 and N 2 changes in appearance that occur after the Figure 6 Introduce CO into the surfactant emulsion 2 and N 2 Changes in post-microscope pictures.

[0036] Embodiment 2: Synthesis of 11-tertiary aminocarbonyl ferrocene surfactant

[0037] First add 12.0539g of ferrocene and 19.0338g of anhydrous zinc chloride into the three-necked flask, and add 50mL of dichloromethane as a solvent. Dissolve 16.7706g of 11-tertiary amine undecanoyl chloride in 30mL of dichloromethane, transfer it to a constant pressure funnel, and slo...

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PUM

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Abstract

The invention discloses a ferrocene double stimulus response surfactant, the surfactant 2 When a bicarbonate cationic surfactant is formed, N 2 Or in the air, the surfactant decomposes to generate alkylamine and loses its surface activity; adding an oxidizing agent, such as hydrogen peroxide, etc., the surfactant is oxidized; adding a reducing agent, such as sodium sulfite, sodium borohydride, vitamin C, etc., the surfactant can Restored to the initial state, that is, the surfactant has carbon dioxide-redox dual stimulus responsiveness, and the surfactant can form carbon dioxide-redox dual stimulus-responsive foams, emulsions, and the like.

Description

[0001] (1) Technical field [0002] The invention relates to a ferrocene-based dual-stimuli-responsive surfactant, which belongs to the field of colloid and interface chemistry. [0003] (2) Background technology [0004] In recent years, switchable surfactants and their intelligent response systems have aroused great interest and widespread attention. Under certain external stimuli, the structures of these functional compounds undergo reversible changes, making them switch between "on" and "off", that is, with "surface activity" and "without surface activity", and then affect the system. Microscopic and macroscopic properties, such as some controllable foams or emulsions, the stability of the system under certain environmental stimuli can be intelligently regulated. Secondly, these surface-active "switches" can be reused, so it not only has intelligent regulation performance, but also realizes the reuse of resources, so it has great application prospects. [0005] There are ...

Claims

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Application Information

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IPC IPC(8): C07F17/02B01F17/22B01F17/16C09K23/16C09K23/22
CPCC07F17/02C09K23/00
Inventor 蒋建中余诗洁尹金超
Owner JIANGNAN UNIV
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