Bola type polyether-modified organosilicon surfactant and preparation method thereof

A surfactant and polyether modification technology, applied in chemical instruments and methods, dissolution, chemical/physical processes, etc., can solve problems such as expensive, unreported, cumbersome synthesis methods, etc., to ensure environmental safety, Excellent surface activity, rich variety of effects

Active Publication Date: 2015-05-27
HUAWEI TEHCHNOLOGIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the special raw materials used in the synthesis of Bola-type surfactants in the prior art, the synthesis method is loaded down with trivial details, and the chloroplatinic acid used in the reaction is an expensive and poisonous catalyst, and the hydrophobic groups in these Bola-type surfactants are mainly hydrocarbon chains, thus developing hydrophobic groups Bola-type polyether-modified organosilicon surfactants that are silicones have positive significance for enriching the types of Bola-type surfactants, and at the same time, it is also of positive significance to explore simple reaction routes to reduce preparation costs. However, in the so far disclosed No relevant reports have been found in patent and non-patent literature, and the technical solutions to be introduced below are produced under this background

Method used

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  • Bola type polyether-modified organosilicon surfactant and preparation method thereof
  • Bola type polyether-modified organosilicon surfactant and preparation method thereof
  • Bola type polyether-modified organosilicon surfactant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation of Bisaminopropyl-terminated Polysiloxane

[0038] Add hexamethylcyclotrisiloxane 55.6Kg (250mol), 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane 12.4Kg ( 50mol), tetramethylammonium hydroxide 0.45Kg (5mol), heating and dissolving, the temperature is controlled at 20 ° C, after 50 hours of reaction, the temperature is raised to 140 ° C to deactivate the catalyst, and the excess raw materials are removed by vacuum distillation to obtain bisaminopropyl end-blocked polysiloxane.

[0039] Preparation of Polyethylene Glycol Monomethyl Ether Succinate

[0040] Add polyethylene glycol monomethyl ether 1200 (MPEG-1200) 600.0Kg (500mol) into the reaction kettle, heat up to 60°C, after the MPEG is dissolved, add 50.0Kg (500mol) of succinic anhydride, and add p-toluenesulfonic acid The amount is 130Kg (accounting for 20% of the total mass of polyethylene glycol monomethyl ether and succinic anhydride). After the materials are fully dissolved, keep warm for 30 hou...

Embodiment 2

[0044] Preparation of Bisaminopropyl-terminated Polysiloxane

[0045] Add octamethylcyclotetrasiloxane 222.5Kg (750mol), 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane 12.4Kg ( 50mol), tetramethylsiliconol ammonium 0.18Kg (0.5mol), heating to dissolve, the temperature is controlled at 60 ° C, after 25 hours of reaction, the temperature is raised to 140 ° C to deactivate the catalyst, and the excess raw materials are removed by vacuum distillation to obtain diaminopropyl Group-terminated polysiloxane.

[0046] The preparation of monopolyethylene glycol monomethyl ether succinate is the same as in Example 1.

[0047] Preparation of Bola-type Polyether Modified Silicone Surfactant

[0048] In the reactor, add 469.7Kg (100mol) of bisaminopropyl-terminated polysiloxane, 1560Kg (1200mol) of monopolyethylene glycol monomethyl ether succinate, and use ethanol as a solvent, and react at reflux temperature for 20h, Cool, filter to remove unreacted raw materials, evaporate the s...

Embodiment 3

[0050] Preparation of Bisaminopropyl-terminated Polysiloxane

[0051] Add decamethylcyclopentasiloxane 556.2Kg (1500mol), 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane 12.4Kg ( 50mol), sodium hydroxide 0.1Kg (2.5mol), heat to dissolve, the temperature is controlled at 120 ° C, after 5 hours of reaction, add acid to neutralize, deactivate the catalyst, and rectify under reduced pressure to remove excess raw materials to obtain diaminopropyl capping polysiloxane.

[0052] The preparation of monopolyethylene glycol monomethyl ether succinate is the same as in Example 1.

[0053] Preparation of Bola-type Polyether Modified Silicone Surfactant

[0054] Add 1137Kg (100mol) of bisaminopropyl-terminated polysiloxane, 2600Kg (2000mol) of monopolyethylene glycol monomethyl ether succinate in the reaction kettle, use propanol as solvent, and react at reflux temperature for 30 hours , cooled, filtered to remove unreacted raw materials, evaporated to remove the solvent, and vacuu...

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Abstract

The invention discloses a Bola type polyether-modified organosilicon surfactant and a preparation method thereof. A general structural formula of the organosilicon surfactant is as shown in the specification, wherein m is an integer of 1-200; and n is an integer of 8-40. The preparation method comprises the following steps: (1) with cyclosiloxane and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane as raw materials, preparing bis-aminopropyl-terminated modified polysiloxane in the presence of a catalyst; (2) enabling succinic anhydride to react with methoxy polyethylene glycol to obtain succinic acid mono polyethylene glycol monomethyl ether ester; and (3) enabling the bis-aminopropyl modified polysiloxane to react with the succinic acid mono polyethylene glycol monomethyl ether ester under the condition of lower alcohol as a solvent, so as to obtain the Bola type polyether-modified organosilicon surfactant. According to the preparation method disclosed by the invention, a catalyst, chloroplatinic acid, used by synthesis of an organosilicon surfactant in the prior art is abandoned to ensure environmental protection and safety; and in addition, the method disclosed by the invention is simple but not fussy in preparation technology and low in preparation cost, and can meet the requirements of industrialized enlarged production.

Description

technical field [0001] The invention belongs to the technical field of surfactants and their preparation, in particular to a Bola-type polyether-modified silicone surfactant, and also relates to a preparation method thereof. Background technique [0002] Bola-type surfactants are compounds formed by connecting two hydrophilic polar groups through one or more hydrophobic chains, named after Bola (a rope with lead pendants tied at both ends), which resembles a weapon of South American natives. . Due to the special structure of Bola-type molecules, it exists in a U-shaped configuration on the surface of the solution, that is, two hydrophilic groups extend into the water phase, and the curved hydrophobic chain extends into the gas phase. Compared with traditional surfactants, Bola-type surfactants have many unique properties: high-temperature stability, good chemical stability, higher solubility, rich phase behavior, that is, the formation of various morphologies in the aqueous...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/54B01F17/44C09K23/54C09K23/44
Inventor 曾小君付任重许家瑞赵登宇张裕明李立城
Owner HUAWEI TEHCHNOLOGIES CO LTD
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