Rosin-based CO2/N2 response type surfactant, and preparation method and application thereof

A surfactant and rosin-based technology, which is applied in the field of rosin-based CO2/N2 responsive surfactants and their preparation, can solve environmental hazards, limit the types of surfactants and other problems, and achieve good responsiveness

Active Publication Date: 2019-12-17
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in existing reports, most CO 2 Responsive surfactants still use traditional petroleum-based and commercialized surfactants as raw materials, which not only harms the environment, but also greatly limits the types of surfactants

Method used

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  • Rosin-based CO2/N2 response type surfactant, and preparation method and application thereof
  • Rosin-based CO2/N2 response type surfactant, and preparation method and application thereof
  • Rosin-based CO2/N2 response type surfactant, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A rosin-based CO 2 / N 2 Responsive polymerizable surfactant, referred to as MPANG, MPANG's 1 The H NMR spectrum is shown in 1, from figure 1 of 1 The H NMR spectrum shows that the prepared product is the target product. Its structural formula is as follows:

[0033]

Embodiment 2

[0035] A rosin-based CO 2 / N 2 The synthesis of responsive surfactants includes the following steps:

[0036] 100g (0.33mol, the total amount of abietic acid, neoabietic acid and palustric acid is calculated as 80%, 0.265mol) masson pine rosin, 35g (0.357mol) maleic anhydride, 40g acetic acid, react at 140°C for 4h, add after cooling 100g of glacial acetic acid was crystallized by cooling, and suction filtered to obtain maleopimaric acid.

[0037] Add 10g of maleopimaric acid into the reactor and dissolve it in ethanol, and stir at 85°C for 0.5h. Dissolve 2.55g of N,N-dimethyl-1,3-propanediamine in ethanol solvent, add it dropwise into the reactor, continue stirring for 5h after the dropwise addition, after cooling, white crystals precipitate, filter and dry to obtain MPAN

[0038] Add 10g MPAN into the reactor and dissolve it in ethanol. After stirring at 85°C for 0.5h, dissolve 2.36g of glycidyl alcohol in the solvent ethanol and add it into the reactor dropwise. After th...

Embodiment 3

[0041] Judging by the reversible conversion of the conductivity of MPANG solution, the effect of MPANG on CO 2 / N 2 responsiveness. CO 2 Soluble in aqueous solution to form H 2 CO 3 Weak acid solution leads to protonation of the tertiary amine group, generating the charged cationic surfactant MPANGH + The conductivity was raised to about 104.5 μS / cm. When passing N at 60°C 2 drive out CO 2 Afterwards, the weak acidity of the solution disappears, and the charged cationic surfactant deprotonates back to the original tertiary amine group state, so that the conductivity drops back to the initial value. When CO is introduced again 2 Afterwards, the conductivity rises to about 104.5μs / cm again, and this process can be repeated several times to illustrate the effect of MPANG on CO 2 / N 2 It is very responsive. MPANG vs. CO 2 / N 2 The response process is as follows:

[0042]

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Abstract

The invention discloses a rosin-based CO2/N2 response type surfactant. Maleopimaric acid and N,N-dimethyl-1,3-propane diamine are subjected to an imidization reaction to introduce a tertiary amine group capable of responding to CO2, then the product and epoxypropanol are subjected to an esterification reaction to introduce a hydrophilic group, and the prepared MPANG has good surface activity. After MPANG is dissolved in water, CO2 is introduced into the water, and the aqueous solution is weakly acidic, so that tertiary amine is protonated to form tertiary amine salt and is positively charged to become a cationic surfactant MPANGH<+>; and after N2 is introduced to expel CO2, the tertiary amine salt with positive charges is deprotonated to recover to the initial tertiary amine state. The invention also discloses the emulsifying property of the surfactant, the emulsifying property becomes better after CO2 is introduced into the surfactant and the surfactant becomes a cationic surfactant,and the obtained emulsion also has good responsiveness to CO2/N2. Furthermore, no matter whether the emulsion is stabilized by a nonionic surfactant or a cationic surfactant, the dosage of the surfactant can be greatly reduced as long as charged particles exist.

Description

technical field [0001] The invention belongs to the technical field of green surfactants, in particular to a rosin-based CO 2 / N 2 Responsive surfactant and its preparation method and application. Background technique [0002] The traditional emulsion stabilized by amphiphilic compounds is a thermodynamically unstable system. If the emulsion wants to exist stably for a long time, it often needs to add a large amount of amphiphilic compounds, which will lead to an increase in cost; Pickering emulsion is an emulsion stabilized by solid particles, which is thermodynamically stable. System, better stability; generally there are two types of particles, including asymmetric surface and symmetrical surface, the former is called amphiphilic Janus particles, and the latter is organic or inorganic particles with or without grafted functional groups. In addition, ionic surfactants can also be transferred to oppositely charged particles through electrostatic attraction to make the par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/58B01F17/38C09K23/38
CPCC07D209/58C09K23/00Y02P20/54
Inventor 饶小平闫鑫焱宋湛谦商士斌
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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