Synthesis method of polymer emulsifier and application of polymer emulsifier in preparation of hydroxyl silicone oil emulsion

A kind of polymer emulsifier, technology of synthesis method, applied in the application field of preparing hydroxyl silicone oil emulsion

Active Publication Date: 2021-11-02
浙江理工大学桐乡研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, most of the emulsifiers used for silicone oil are compound emulsifiers, and there is less research on polymer emulsifiers. This invention synthesized a new type of polymer emulsifier and studied its application performance in hydroxyl silicone oil

Method used

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  • Synthesis method of polymer emulsifier and application of polymer emulsifier in preparation of hydroxyl silicone oil emulsion
  • Synthesis method of polymer emulsifier and application of polymer emulsifier in preparation of hydroxyl silicone oil emulsion
  • Synthesis method of polymer emulsifier and application of polymer emulsifier in preparation of hydroxyl silicone oil emulsion

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Embodiment 1

[0029] (1) Synthesis of methoxy polyethylene glycol methacrylate phosphorylated monomer:

[0030]

[0031] Among them, n=15.

[0032] Weigh methoxypolyethylene glycol methacrylate and the polymerization inhibitor hydroquinone and mix evenly, control the temperature at 30°C, add phosphorus pentoxide in batches, raise the temperature to 80°C, react for 5 hours, and the reaction ends Then add an appropriate amount of water and hydrolyze for 2 hours to obtain the methoxypolyethylene glycol methacrylate phosphorylated monomer with the structure of formula I.

[0033] Description: The molar ratio of methoxy polyethylene glycol methacrylate to phosphorus pentoxide is 1.7:1, the polymerization inhibitor is 1% of the total mass of methoxy polyethylene glycol methacrylate monomer, water and The molar ratio of phosphorus pentoxide is 1.78:1. The esterification temperature is 80°C, the esterification time is 5 hours, and the hydrolysis time is 2 hours.

[0034] (2) Synthesis of poly...

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Abstract

The invention discloses a synthesis method of a polymer emulsifier and an application of the polymer emulsifier in preparation of a hydroxyl silicone oil emulsion. The synthesis method comprises the steps: weighing methoxy polyethylene glycol methacrylate and a polymerization inhibitor hydroquinone, uniformly mixing, adding phosphorus pentoxide, adding water after the reaction is finished, and hydrolyzing to obtain a methoxy polyethylene glycol methacrylate phosphorylated monomer; weighing octadecyl methacrylate and the prepared monomer, dissolving the weighed octadecyl methacrylate and the prepared monomer in isopropanol, dissolving an initiator in acetone, and when the temperature rises to 55-65 DEG C, dropwise adding an initiator solution; and after dropwise adding, carrying out heat preservation reaction to obtain a polymer emulsifier. The emulsifier disclosed by the invention takes octadecyl methacrylate as a hydrophobic monomer, has a relatively long hydrophobic chain, and has relatively strong acting force with hydroxyl silicone oil. The methoxy polyethylene glycol methacrylate phosphorylated monomer is a hydrophilic solvated chain segment and can provide steric hindrance and electrostatic repulsion, so that a stable system is obtained.

Description

technical field [0001] The invention relates to the field of synthesis of polymer emulsifiers, in particular to a synthesis method of polymer emulsifiers and its application in preparing hydroxyl silicone oil emulsions. Background technique [0002] Hydroxy silicone oil is a kind of darkening silicone oil, and its end group is a linear polydimethylsiloxane with hydroxyl groups. The silicon hydroxyl group in its structure is reactive and can dehydrate with the alcoholic hydroxyl group on cellulose to form ether, so it has good film-forming properties and binding fastness. Hydroxy silicone oil emulsion is basically a non-toxic and pollution-free green product. In addition to being used in the fields of cosmetics and waterproof coatings, it is also favored in terms of deepening and softness of fabrics. However, hydroxy silicone oil cannot be used directly, it must be emulsified into an emulsion with the help of an emulsifier, and the biggest problem with the emulsified hydroxy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/06C08F220/18C08G65/327C08J3/03C08L83/04C08L51/08
CPCC08F283/065C08G65/327C08J3/03C08J2383/04C08J2451/08C08F220/1818
Inventor 姜建堂杨雷孙洋洋沈一峰
Owner 浙江理工大学桐乡研究院有限公司
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