Boron-containing polyethylene glycol fatty acid ester surfactant

A surfactant, polyethylene glycol technology, applied in the directions of dissolution, chemical instruments and methods, chemical/physical processes, etc., to achieve good emulsification performance, improve esterification rate, and reduce surface tension.

Inactive Publication Date: 2014-11-05
JIANGNAN UNIV
0 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

If boron atoms are introduced into PEG ester surfactants, the stability and antistatic properties of PEG ester surfactants can be effe...
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Abstract

A boron-containing polyethylene glycol fatty acid ester surfactant belongs to the field of organic chemistry and functional materials. The boron-containing polyethylene glycol fatty acid ester surfactant is prepared as follows: polyethylene glycol (PEG), boric acid and fatty acid are used as raw materials, first esterification reaction of the PEG and the boric acid is performed, then esterification reaction of the PEG and the fatty acid is performed to obtain boron-containing poly ethylene glycol fatty acid ester; by changing the species of fatty acids and catalysts and molecular weight of the PEG, the esterification rate can be enhanced, the boron-containing poly ethylene glycol fatty acid ester product can be used as a surfactant, and the boron-containing poly ethylene glycol fatty acid ester can reduce water surface tension and has good emulsifying properties.

Application Domain

Transportation and packagingMixing +1

Technology Topic

Polyethylene glycolFatty acid ester +6

Image

  • Boron-containing polyethylene glycol fatty acid ester surfactant
  • Boron-containing polyethylene glycol fatty acid ester surfactant
  • Boron-containing polyethylene glycol fatty acid ester surfactant

Examples

  • Experimental program(1)

Example Embodiment

[0014] Embodiment 1, the esterification reaction of boronic acid and PEG
[0015] The molar ratio of 10g PEG-600 and 350mg boric acid is 3:1 and put into the three-necked flask, install electric stirrer, water separator, thermometer and reflux condenser, add 0.8% terephthalic acid, 100mL of xylene with water agent , refluxed at 140 ° C for 2 h, distilled under reduced pressure to remove water and xylene, and dried to obtain polyethylene glycol borate.
[0016] Embodiment 1, the esterification reaction of boric acid-PEG and fatty acid
[0017] Weigh 5g of polyethylene glycol borate, react with 2g of palmitic acid in a molar ratio of 1:3, the catalyst sodium hydrogen sulfate monohydrate (0.8% of the total mass) and xylene with water agent are put into the installation of electric stirrer , a water separator, a thermometer and a three-necked flask with a reflux condenser, reflux reaction at 140 ° C for 5h, after the reaction, filter to remove the catalyst, and vacuum distillation to remove water and xylene with water agent, drying to obtain boron-containing polyethylene Glycol palmitate.

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