Method for preparing non-ionic hyperbranched linear polymer emulsifier

A technology of hyperbranched polymers and linear polymers, applied in chemical instruments and methods, chemical/physical processes, transportation and packaging, etc., can solve problems such as insufficient penetration, poor fluidity, high viscosity, etc., to achieve The effect of stability

Inactive Publication Date: 2012-06-20
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a kind of preparation method of hyperbranched-linear polymer emulsifier, in order to improve the shortcomings such as penetrating power is not good enough in polymer emulsifier, viscosity is big, fluidity is bad, molecular chain is easy to entangle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0013] First, 1 mol of diethanolamine was dissolved in a certain amount of methanol, 2 mol of methyl acrylate was added dropwise, stirred at 35° C. for 4 hours, and vacuum filtered at 0.08 MPa for 1 hour to obtain monomers for preparing hyperbranched polymers.

[0014] Stir and mix trimethylolpropane and p-toluenesulfonic acid at 115°C, then add the monomer dropwise to trimethylolpropane at a molar ratio of 6:1 between the above monomer and trimethylolpropane, at 100°C The mixture was stirred and reacted for 1 hour, then transferred to a rotary evaporator at 120° C. and 0.01 MPa pressure for 3 hours to obtain a hydroxyl-terminated hyperbranched polymer, wherein the mass fraction of p-toluenesulfonic acid was 2% of the total mass;

[0015] The hydroxyl-terminated hyperbranched polymer and oleic acid were mixed in a molar ratio of 3:1, and rotated at 100°C for 3 hours at a pressure of 0.01MPa. A nonionic hyperbranched-linear polymer emulsifier is obtained.

example 2

[0017] Dissolve 1 mol of diethanolamine in a certain amount of methanol, dropwise add 3 mol of methyl acrylate, stir and react at 15°C for 6 hours, and vacuumize for 1 hour under a pressure of 0.5 MPa to obtain monomers for preparing hyperbranched polymers,

[0018] Stir and mix trimethylolpropane and p-toluenesulfonic acid at 115°C, then add the monomer dropwise to trimethylolpropane at a ratio of 4:1 molar ratio of the above monomers to trimethylolpropane, at 110°C The mixture was stirred and reacted for 1.5 hours, then transferred to a rotary evaporator at 130°C and 0.1MPa pressure for 1.5 hours to obtain a hydroxyl-terminated hyperbranched polymer, wherein the mass fraction of p-toluenesulfonic acid was 0.5% of the total mass;

[0019] The hyperbranched polymer and stearic acid were rotated at 140°C and 0.05MPa for 5 hours at a ratio of 2:1 to obtain a nonionic hyperbranched-linear polymer emulsifier.

example 3

[0021] Dissolve diethanolamine in a certain amount of methanol, add methyl acrylate dropwise to the methanol solution of diethanolamine according to the ratio of methyl acrylate to diethanolamine molar ratio of 2:1, stir at 35°C for 4 hours, and the pressure is 0.1MPa Vacuum under the pressure of 1 hour to obtain the monomer for preparing hyperbranched polymer.

[0022] Stir and mix trimethylolpropane and dry hydrochloric acid at 115°C, then add monomers dropwise to trimethylolpropane at a ratio of 3:1 molar ratio of the above monomers to trimethylolpropane, at 130°C Stirring and reacting for 1.5 hours, transferred to a rotary evaporator at 150°C and 0.5MPa pressure for 3 hours to obtain a hydroxyl-terminated hyperbranched polymer, wherein the mass fraction of p-toluenesulfonic acid was 4% of the total mass;

[0023] Add palmitoyl chloride into the flask according to the molar ratio of hydroxyl-terminated hyperbranched polymer to palmitoyl chloride at a ratio of 5:1, and rotat...

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Abstract

The invention relates to a method for preparing a non-ionic hyperbranched linear polymer emulsifier. The invention adopts a technical scheme which comprises: 1, a step of preparing a hyperbranched polymer monomer, which is to drip methyl acrylate into a methanol solution of diethanol amine according to a molar ratio of methyl acrylate to diethanol amine of (1-3):1, stir the solution for 3 to 6 hours at 15 to 60 DEG C, and vacuumize for 1 hour under a pressure of 0.01 to 1MPa; 2, a step of preparing hyperbranched polymer, which is to mix trimethylolpropane and an acid catalyst at 115 DEG C with stirring, drip the monomer into the trimethylolpropane according to a monomer to trimethylolpropane ratio of (9-3):1, react the monomer with the trimethylolpropane for 1 to 2 hours at 100 to 130 DEGC with stirring, and rotationally evaporate the reaction solution at 120 to 150 DEG C under a pressure of 0.01 to 1MPa; and 3, a step of reacting a hydroxyl-terminated hyperbranched polymer with a hydrophobic group with a long chain in the presence of an acid catalyst to obtain the non-ionic hyperbranched linear polymer emulsifier.

Description

technical field [0001] The invention relates to a preparation method of a hyperbranched polymer emulsifier, in particular to a preparation method of a nonionic hyperbranched-linear polymer emulsifier. Background technique [0002] Emulsifier refers to a substance that improves the surface tension between the various components in the emulsified system and forms a uniform dispersion system or emulsified system. It is a type of surfactant with a hydrophilic group and a hydrophobic group. Since its inception, it has been widely concerned by people, and has been widely used in various fields from ordinary daily necessities to industry. However, as people's demand for various products continues to increase, the types of emulsifiers have also been continuously expanded. Among them, polymer surfactants have always shown good emulsifying ability and emulsification stability. In addition, polymer surfactants also have good dispersion, coagulation, compatibilization, water retention,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/91C08G63/685B01F17/52C09K23/52
Inventor 强涛涛黄兆丰王学川
Owner SHAANXI UNIV OF SCI & TECH
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