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Preparation method of water-soluble solid styrene-acrylic resin

A technology of acrylate and styrene-acrylic resin, which is applied in the field of polymer material preparation, can solve problems such as difficult heat dissipation and unpleasant odor, and achieve the effects of expanding application range, reducing system heat release, and simple polymerization process

Inactive Publication Date: 2010-07-28
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to solve the problems in the prior art and provide a method for preparing a water-soluble solid styrene-acrylate resin with simple process and excellent performance; the method avoids high temperature and high pressure, difficulty in heat dissipation during production, Higher, unpleasant odor and other issues

Method used

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  • Preparation method of water-soluble solid styrene-acrylic resin
  • Preparation method of water-soluble solid styrene-acrylic resin
  • Preparation method of water-soluble solid styrene-acrylic resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step a: Weigh 8.40g of α-methylstyrene, 3.15g of methyl methacrylate, 4.20g of butyl acrylate and 5.25g of acrylic acid and dissolve them in 58.50g of ethylene glycol butyl ether solvent, and take another 1.05g of benzene peroxide Dissolve formyl in the above mixed solution and set it as component 1; weigh 33.60g α-methylstyrene, 12.60g methyl methacrylate, 16.80g butyl acrylate and 21.00g acrylic acid and dissolve them in 117.00g ethylene glycol In the alcohol butyl ether solvent, another 3.94g benzoyl peroxide is dissolved in the above mixed solution, which is set as component 2; 0.27g benzoyl peroxide is taken and dissolved in 19.50g ethylene glycol butyl ether solvent, and the For component 3.

[0034] Step b: Put component 1 in N 2 Put it in a 500mL four-neck flask under rapid stirring under protection, and rapidly raise the temperature to 120°C in 5-10 minutes through a methyl silicone oil bath, and react for 10-15 minutes after the temperature stabilizes, and us...

Embodiment 2

[0039] Step a: Weigh 4.80g of α-methylstyrene, 4.80g of styrene, 2.40g of methyl methacrylate, 4.80g of butyl acrylate, and 7.20g of acrylic acid, dissolve them in 54.00g of ethylene glycol butyl ether solvent, and take another Dissolve 1.80g of dicumyl peroxide in the above mixed solution and set it as component 1; weigh 19.20g of α-methylstyrene, 19.20g of styrene, 9.60g of methyl methacrylate, and 19.20g of butyl acrylate and 28.80g of acrylic acid were dissolved in 108.00g of ethylene glycol butyl ether solvent, and another 6.75g of dicumyl peroxide was dissolved in the above mixed solution, which was set as component 2; 0.45g of dicumyl peroxide was weighed to dissolve In 18.00 g of ethylene glycol butyl ether solvent, set it as component 3.

[0040] Other steps are as shown in Example 1.

[0041] The number average molecular weight of the product measured by GPC is 3265D, the weight average molecular weight is 6805D, and the molecular weight distribution is 2.1; the aci...

Embodiment 3

[0043] Step a: Weigh 9.60g styrene, 2.40g methyl methacrylate, 4.80g butyl acrylate, 7.20g acrylic acid and 0.48g 3-mercaptopropionic acid and dissolve them in 54.00g ethylene glycol butyl ether solvent, and take another 1.80g g of benzoyl peroxide was dissolved in the above mixed solution and set as component 1; 38.4g of α-methylstyrene, 9.60g of methyl methacrylate, 19.20g of butyl acrylate, 28.80g of acrylic acid and 1.92g of 3-Mercaptopropionic acid was dissolved in 108.00g of ethylene glycol butyl ether solvent, and another 6.75g of benzoyl peroxide was dissolved in the above mixed solution, which was set as component 2; 0.45g of benzoyl peroxide was weighed and dissolved in In 18.00g of ethylene glycol butyl ether solvent, set it as component 3.

[0044] Other steps are as shown in Example 1.

[0045] The number average molecular weight of the polymer measured by GPC is 3411D, the weight average molecular weight is 8538D, and the molecular weight distribution is 2.5; th...

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Abstract

The invention discloses a preparation method of water-soluble solid styrene-acrylic resin. The preparation method comprises the following steps: under atmospheric pressure and low temperature, choosing N2 aura as a protective gas, adopting the polymerization process of atmospheric pressure semi-continuous solution, taking peroxide as an evocating agent and mercaptan acid as a chain transfer agent, and obtaining the water-soluble solid styrene-acrylic resin with an adjustable weight mean molecular weight, acid value and glass transition temperature (Tg) through multi components copolymerization of alpha-methyl styrene (AMS) and / or styrene (St), acrylic acid ester monomer and acrylic acid (AA) copolymer. The polymerization process of the method is simple, with the atmospheric pressure environment and low temperature, weight mean molecular weight, the acid value and the Tg value are controllable, the polymerization process is simple; and the polymerization reaction is carried out under atmospheric pressure environment and low temperature (110-120 DEG C), thereby being safe and energy saving for production.

Description

technical field [0001] The invention belongs to the technical field of polymer material preparation, and particularly provides a preparation method of water-soluble solid styrene-acrylate resin. Background technique [0002] Styrene-acrylate-acrylic acid copolymer water-soluble resins are widely used in water-based inks and varnishes, and have excellent performance. Especially in the process of emulsion polymerization, its basified product is an excellent polymer emulsifier, which can reduce the amount of small molecule emulsifiers, further improve the stability and water resistance of the emulsion, and can be used without reducing the original emulsion to the low surface The rheological properties of the emulsion are improved under tensioned substrates, such as plastic films, especially for the adhesion of ink-printed films and paper. However, currently commercially available water-soluble solid acrylic resins generally exist: [0003] (1) High temperature and high pressu...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F220/14C08F220/18C08F220/06C08F4/34C08F2/38C09D11/10
Inventor 夏宇正张浩石淑先
Owner BEIJING UNIV OF CHEM TECH
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