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Acrylic ester block copolymer and its synthesis method and application

An acrylate-based and synthetic method technology, which is applied in the field of ceramic ink dispersant, can solve the problems that the use performance cannot fully meet the use requirements, the polymer dispersant is late, the synthesis method is immature, etc., and achieves good coverage and encapsulation effects. The effect of increasing dispersion stability and excellent structure

Active Publication Date: 2017-08-25
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic research on polymer dispersants started relatively late, there are few types of dispersants, and the synthesis method is not yet mature. The performance of the developed products cannot fully meet the requirements of use, and a large number of foreign products still need to be imported.

Method used

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  • Acrylic ester block copolymer and its synthesis method and application
  • Acrylic ester block copolymer and its synthesis method and application
  • Acrylic ester block copolymer and its synthesis method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] A kind of acrylic ester front polymer, its structure is as follows:

[0063] Wherein, n is 20, m is 30;

[0064] The synthetic method of described acrylic acid ester front end polymer, comprises the steps:

[0065] (1) 10.12g methyl methacrylate (MMA) (0.10mol), 0.282g RAFT reagent S, S'-di(2-methylpropionic acid) trithiocarbonate (0.001mol), 0.016g trigger Reagent azobisisobutyronitrile (AIBN) (1×10 -4 mol) and 57g of toluene were added to the reactor, stirred and mixed; under the condition of ice bath, the reactor was ventilated with nitrogen for 40min to remove the air, and then the temperature was raised to 70°C under the oil bath for reaction, and after 15h of reaction, the temperature was rapidly lowered and exposed to air In the process, the reaction is stopped, and the product obtained from the reaction is purified to obtain the intermediate product MMA macro-RAFT;

[0066] (2) 6.03g intermediate product MMA macro-RAFT, 8.51g monomer N-(3-dimethylaminopropy...

Embodiment 2

[0068] A kind of acrylic ester front polymer, its structure is as follows:

[0069] Among them, n is 21, m is 29;

[0070] The synthetic method of described acrylic acid ester front end polymer, comprises the steps:

[0071] (1) 15.02g methyl methacrylate (MMA) (0.15mol), 0.282g S, S'-di(2-methylpropionic acid) trithiocarbonate (0.001mol), 0.033g initiator couple Azobisisobutyronitrile (AIBN) (2×10 -4 mol) and 85g of ethyl acetate were added to the reactor, stirred and mixed; under the condition of ice bath, the reactor was ventilated with nitrogen for 40min to remove the air, and then the temperature was raised to 80°C under the oil bath for reaction, and after 20h of reaction, the temperature was rapidly lowered and exposed In the air, the reaction is stopped, and the product obtained from the reaction is purified to obtain the intermediate product MMA macro-RAFT;

[0072] (2) 5.81g intermediate product MMA macro-RAFT, 8.51g monomer N-(3-dimethylaminopropyl) methacrylam...

Embodiment 3

[0074] A kind of acrylic ester front polymer, its structure is as follows:

[0075] Among them, n is 17, m is 27;

[0076] The synthetic method of described acrylic acid ester front end polymer, comprises the steps:

[0077] (1) 30.01g methyl methacrylate (MMA) (0.30mol), 0.282g S, S'-di(2-methylpropionic acid) trithiocarbonate (0.001mol), 0.049g initiator couple Azodiisobutyronitrile (3×10 -4 mol) and 170g DMF were added to the reactor, stirred and mixed; under the condition of ice bath, the reactor was ventilated with nitrogen for 40min to remove the air, and then the temperature was raised to 75°C under the oil bath for reaction, and after 24h, the temperature was rapidly lowered and exposed to the air In the process, the reaction is stopped, and the product obtained from the reaction is purified to obtain the intermediate product MMA macro-RAFT;

[0078] (2) 5.45g intermediate product MMA macro-RAFT, 8.51g monomer N-(3-dimethylaminopropyl) methacrylamide (DMAPMA) (0.0...

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Abstract

The invention belongs to the technical field of ceramic ink dispersants, and discloses an acrylic ester block copolymer, a synthesis method thereof and its application as a ceramic ink-jet ink dispersant. The acrylate block polymer is prepared by polymerizing methyl methacrylate and N-(3-dimethylaminopropyl)methacrylamide. Its synthetic method comprises the following steps: under anaerobic conditions, monomer N-(3-dimethylaminopropyl) methacrylamide (or methyl methacrylate) generates RAFT reagent under the action of initiator and RAFT reagent The macromolecule reacts with the monomer methyl methacrylate (or N-(3-dimethylaminopropyl) methacrylamide) to generate the acrylate block polymer under the induction of the initiator. The acrylate block polymer has a good effect of covering and encapsulating the surface of inorganic particles, and has a stable dispersion system, and is mainly used in the dispersion of ceramic pigment particles for ceramic inkjet.

Description

technical field [0001] The invention belongs to the technical field of ceramic ink dispersants, and in particular relates to an acrylic ester block copolymer, a synthesis method thereof and its application as a ceramic ink-jet ink dispersant. Background technique [0002] Ceramic inkjet printing technology has brought epoch-making changes to China's ceramic industry since Spain, Italy, the United States and other ceramic powers were introduced into China, and it has gradually become a popular trend in the domestic ceramic industry. One of the keys to the application of ceramic inkjet technology lies in the development of ceramic inks. The development of ceramic inks with high brightness, wide color range, smooth printing, good stability, safety and environmental protection is an inevitable trend of future ceramic inkjet printing. [0003] Ceramic ink is generally composed of ceramic pigments (colorants), solvents, dispersants, binders and other auxiliary agents. The dispers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F293/00C08F220/14C08F220/60C09D11/30
Inventor 廖兵梁彩珍王斌方天勇张伟
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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