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Rosin-based micromolecular organic gel and cyclo-hexane gel formed by same

A technology of cyclohexane gel and organogel, which is applied in the field of cyclohexane gel, can solve the problems of no preparation method of rosin-based organogel, and achieve the effects of promoting development, rich resources, and unique chemical structure

Active Publication Date: 2020-12-29
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, there are only reports about rosin-based small molecule hydrogels, and there are no efficient rosin-based organogels and their preparation methods.

Method used

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  • Rosin-based micromolecular organic gel and cyclo-hexane gel formed by same
  • Rosin-based micromolecular organic gel and cyclo-hexane gel formed by same
  • Rosin-based micromolecular organic gel and cyclo-hexane gel formed by same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Purification of dehydroabietic acid: put 50g of disproportionated rosin, 5mL of ethanol and 250mL of petroleum ether into a clean 1000mL beaker, heat and stir to dissolve it completely, add ethanolamine (7.13 g, 0.12mol), and after fully stirring for 20 minutes, a solid precipitated out, cooled naturally to room temperature, and filtered under reduced pressure. The obtained solid was recrystallized three times with ethanol / water (1:1 by volume) to obtain relatively pure ethanolamine salt of dehydroabietic acid. Dissolve the above-mentioned ethanolamine salt with 100mL ethanol / water (volume ratio 1:1) solution under heating, and acidify with acetic acid (10.5g, 0.18mol). During the process, a white solid precipitates, then add 10mL water to make it fully precipitated, and cool to Suction filtration under reduced pressure at room temperature, and vacuum drying to obtain pure white dehydroabietic acid.

[0031] (2) Synthesis of rosin-based amphiphile: dissolve ethyl l...

Embodiment 2

[0034] [Example 2] Determination of the gelation behavior of rosin-based amphiphiles.

[0035] Weigh 0.025g of rosin-based amphiphile and 1mL of different solvents (the concentration of the corresponding solution is recorded as 2.5%, w / v) and put them in a glass bottle, seal it, heat it until it is completely dissolved, and observe it upside down after cooling at room temperature. The results are shown in Table 1. The rosin-based amphiphile exhibited good gelling ability in the solvents cyclohexane and TEOS. image 3 A picture of a cyclohexane gel formed between a rosin-based amphiphile and cyclohexane.

[0036] The gel behavior (2.5%, w / v) of table 1 compound 1 in various organic solvents

[0037]

[0038] Note: [a] G = stable gel S = dissolved I = insoluble

[0039] Determination of the microstructure of rosin-based amphiphiles:

[0040] After freeze-drying the wet gel formed by the above 0.025g rosin-based amphiphile and 1mL cyclohexane, it was coated on the conducti...

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Abstract

The invention discloses a rosin-based micromolecular organic gel and cyclo-hexane gel formed by the same, and belongs to the field of chemical utilization of rosin. According to the invention, dehydroabietic acid and lysine ethyl ester hydrochloride are used as raw materials, an amidation reaction is carried out to obtain a rosin-based amphiphilic molecule, and meanwhile, the invention provides the structure of the rosin-based micromolecular gel and the gelling performance of the rosin-based micromolecular gel in different kinds of organic solvents. The micromolecular organic gel can be used for gelling cyclo-hexane, and shows a very good gelling capability. China is rich in rosin resources, development of rosin and rosin products is promoted, and a new way is explored for high-added-valueutilization of rosin.

Description

technical field [0001] The invention relates to a rosin-based small molecule organic gelling agent and the cyclohexane gel formed therefrom, belonging to the field of chemical utilization of rosin. Background technique [0002] As a typical soft matter material, gel plays an important role in the fields of cosmetics, food, drug sustained release, biomimicry and inorganic nanomaterials. Common gelling factors include fatty acid derivatives, anthracenyl derivatives, amino acid-based gelling factors, diurea-type gelling factors, steroid derivatives, cyclodextrin derivatives, etc. One of the key points in the field of small molecule gels is to study the properties of the molecular structure of gels and the physical chemistry of gels, and to design and synthesize small molecule gels with unique properties. By selecting suitable reaction materials and rational molecular design, it is expected to obtain a series of small molecule gel systems with unique properties. [0003] Rosin...

Claims

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Application Information

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IPC IPC(8): C07C231/02C07C233/63B01J13/00
CPCB01J13/0065C07C233/63C07C2603/26
Inventor 宋冰蕾庞淑敬陈豪
Owner JIANGNAN UNIV
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