Dehydroabietic acid-based anionic surfactant and stable foam formed by same

A surfactant, dehydroabietic acid technology, applied in the field of dehydroabietic acid-based amino acid anionic surfactants, new dehydroabietic acid-based anionic surfactants, can solve the limitations of large volume and rosin-based surfactants , Aggregation ability is not strong and other problems, to achieve good foam stabilization performance, the effect of relieving the tension of oil and energy

Inactive Publication Date: 2016-11-23
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the main part of abietic acid is a tricyclic diterpene-type rigid skeleton structure with a large volume, the aggregation ability of traditional rosin-based surfactants is generally not strong; group, which limits the application of rosin-based surfactants in some fields

Method used

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  • Dehydroabietic acid-based anionic surfactant and stable foam formed by same
  • Dehydroabietic acid-based anionic surfactant and stable foam formed by same
  • Dehydroabietic acid-based anionic surfactant and stable foam formed by same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: the synthesis of dehydroabietoyl chloride. The dehydroabietic acid solid (10.6g, 0.05mol) is added in the there-necked flask equipped with tail gas absorbing device, reflux condenser, adds a small amount of 4-dimethylaminopyridine (DMAP) as catalyst, when temperature rises to 60 ℃, Slow dropwise addition of thionyl chloride (10 g, 0.08 mol) was started. During this process, a large amount of acid gas is generated, which is absorbed by the tail gas absorption device. After the dropwise addition, set the temperature to 72°C and continue the reaction for 3h. After the reaction was completed, excess thionyl chloride was removed by rotary evaporation under reduced pressure to obtain the crude product of dehydroabietoyl chloride.

Embodiment 2

[0021] Embodiment 2: Synthesis of sodium 6-dehydroabietamido caproate. Add 6-aminocaproic acid (5.5 g, 0.04 mol) into the three-necked flask, and then add an appropriate amount of mixed solvent of acetone and water, the volume ratio of acetone and water is 1:1. Under full stirring, add dropwise an acetone solution containing 0.04 mol of dehydroabietoyl chloride and an aqueous solution containing 0.12 mol of sodium hydroxide respectively, control the reaction temperature at 10-20°C, and control the pH value of the reaction system at about 8-10. Reaction 2 -3h. After the reaction, the product was transferred to a 1000 mL beaker, and the pH value of the system was adjusted to 1-2 with 6 mol / L hydrochloric acid to produce a light yellow solid. Wash the product three times with water and petroleum ether respectively, add excess sodium hydroxide solid to make the product into sodium salt, and add 100 mL of ethanol after fully reacting. Add anhydrous sodium sulfate to the mixture t...

Embodiment 3

[0022] Embodiment 3: the mensuration of surface tension. A series of surfactant aqueous solutions with different concentrations were prepared, and the surface tension was measured by the suspension ring method at 25°C, and the relationship curve between the concentration of the sample aqueous solution and the value of the surface tension was drawn.

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Abstract

The invention relates to a dehydroabietic acid-based anionic surfactant 6-dehydroabietic acylamino sodium caproate and stable foam formed by the same. The surfactant is prepared from the main synthetic raw materials of dehydroabietic acid and amino acid which are both from natural products and is a green surfactant. The solubility of 6-dehydroabietic acylamino sodium caproate at room temperature is larger than 0.8 mol / L, and 6-dehydroabietic acylamino sodium caproate has the capacity of being compounded with multiple components; the critical micelle concentration value of the surfactant is 1.26 mmol / L, and a high aggregation capacity is shown. In addition, 6-dehydroabietic acylamino sodium caproate has good foam stability. The surfactant can serve as an environment-friendly product with a good property and is applied in formulas of daily cleansers, detergents, dispersing agents, daily-use chemicals and foam stabilizers.

Description

technical field [0001] The invention relates to a novel dehydroabietic acid-based anionic surfactant, in particular to a dehydroabietic acid-based amino acid anionic surfactant, belonging to the fields of surfactant science and rosin chemistry utilization. Background technique [0002] Rosin is an abundant renewable forest resource. Rosin-based products or deep-processed products have been widely used in various fields of industry and life such as rubber, ink, paint, pesticide, medicine, food, electronics, etc. As people pay more and more attention to environmental issues, seeking natural and green production raw materials is the goal of various chemical industries, and the same is true for the surfactant industry. Rosin has the advantages of being renewable, biodegradable, rich in sources, and easy to modify its structure. It is one of the important raw material sources of green surfactants. Because the main part of abietic acid is a tricyclic diterpene-type rigid skeleto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/22C07C231/02C07C233/63C09K23/22
CPCC07C51/60C07C231/02C09K23/00
Inventor 宋冰蕾余小娜雷岚席皙
Owner JIANGNAN UNIV
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