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Acrylate-acrylamide type block polymer, synthetic method and application thereof

A technology of block polymer and acrylamide, which is applied in the field of acrylate-acrylamide block polymer and its synthesis, can solve the problem that the use performance cannot fully meet the use requirements, the polymer dispersant is late, and the synthesis method is immature, etc. problem, to achieve the effect of good encapsulation effect, excellent structure, good molecular weight and distribution

Active Publication Date: 2015-05-27
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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  • Acrylate-acrylamide type block polymer, synthetic method and application thereof
  • Acrylate-acrylamide type block polymer, synthetic method and application thereof
  • Acrylate-acrylamide type block polymer, synthetic method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] An acrylate-acrylamide block polymer has the following structure:

[0060] Among them, m is 32, n is 41;

[0061] The synthetic method of described acrylate-acrylamide block polymer comprises the steps:

[0062] (1) 25.44g lauryl methacrylate (LMA) (0.10mol), 0.364g RAFT reagent S-dodecyl-S'-(2-methylpropionic acid) trithiocarbonate (0.001mol) , 0.016g initiator azobisisobutyronitrile (AIBN) (1×10 -4 mol) and 228.96g of toluene were added to the reactor, stirred and mixed; under the condition of ice bath, the reactor was ventilated with nitrogen for 40 minutes to remove the air, and then the temperature was raised to 75°C under the oil bath for reaction, and after 15 hours of reaction, the temperature was rapidly lowered and exposed to In the air, the reaction is stopped, and the product obtained from the reaction is purified to obtain the intermediate product LMA macro-RAFT;

[0063] (2) 10.43g intermediate product LMA macro-RAFT, 17.02g monomer N-(3-dimethylamino...

Embodiment 2

[0065] An acrylate-acrylamide block polymer has the following structure:

[0066] Among them, m is 29, n is 37;

[0067] The synthetic method of described acrylate-acrylamide block polymer comprises the steps:

[0068] (1) 25.44g lauryl methacrylate (LMA) (0.10mol), 0.364g RAFT reagent S-dodecyl-S'-(2-methylpropionic acid) trithiocarbonate (0.001mol) , 0.033g initiator azobisisobutyronitrile (AIBN) (2×10 -4 mol) and 228.96 g of ethyl acetate were added to the reactor, stirred and mixed; under ice-bath conditions, the reactor was ventilated with nitrogen for 40 minutes to remove the air, and then heated to 80 ° C under an oil bath for reaction, and the temperature was rapidly lowered after 20 hours of reaction. Expose to the air, stop the reaction, and purify the reaction product to obtain the intermediate product LMA macro-RAFT;

[0069] (2) 9.41g intermediate product LMA macro-RAFT, 8.51g monomer N-(3-dimethylaminopropyl) methacrylamide (DMAPMA) (0.05mol), 0.033g initiat...

Embodiment 3

[0071] An acrylate-acrylamide block polymer has the following structure:

[0072] Among them, m is 24, n is 32;

[0073] The synthetic method of described acrylate-acrylamide block polymer comprises the steps:

[0074] (1) 25.44g lauryl methacrylate (LMA) (0.10mol), 0.364g RAFT reagent S-dodecyl-S'-(2-methylpropionic acid) trithiocarbonate (0.001mol) , 0.049g initiator azobisisobutyronitrile (AIBN) (3×10 -4 mol) and 228.96g 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, then the temperature was raised to 75°C under the oil bath for reaction, and after 24h of reaction, the temperature was rapidly lowered and exposed to In the air, the reaction is stopped, and the product obtained from the reaction is purified to obtain the intermediate product LMA macro-RAFT;

[0075] (2) 8.14g intermediate product LMA macro-RAFT, 8.51g monomer N-(3-dimethylaminopropyl) methacrylamide ...

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Abstract

The invention belongs to the field of high-molecule polymers, and discloses an acrylate-acrylamide type block polymer, a synthetic method and an application thereof. The acrylate-acrylamide type block polymer is prepared from lauryl methacrylate and N-(3-Dimethylaminopropyl)methacrylamide by an RAFT polymerization method. The synthetic method of the acrylate-acrylamide type block polymer comprises the following steps: under an anaerobic condition, preparing RAFT reagent macromolecules from a monomer lauryl methacrylate (or N-(3-dimethylaminopropyl)methacrylamide) under the action of an initiator and an RAFT reagent, reacting the RAFT reagent macromolecules and a monomer N-(3-dimethylaminopropyl)methacrylamide (or lauryl methacrylate) under the induction of the initiator to generate the acrylate-acrylamide type block polymer. The acrylate-acrylamide type block polymer has effects of covering and packaging surfaces of inorganic particles, a dispersion system is stable, and the acrylate-acrylamide type block polymer can be applied to dispersion of ceramic jetting ink.

Description

technical field [0001] The invention belongs to the field of ink-jet ink preparation technology and polymers, and in particular relates to an acrylate-acrylamide block polymer and its synthesis method and application. Background technique [0002] Ceramic inkjet printing technology is the top technology in the field of ceramic surface decoration technology. Ceramic pigment powder is made into ceramic ink, which is directly printed on the substrate through an inkjet printer, and then shaped by high temperature treatment. Since the geometric shape of the surface decoration by this preparation method is controlled by computer software, complex shape products can be formed, and it is free from mold restrictions, so the stereotype process of other printing methods can be greatly shortened. Due to its particularity, the key to realizing inkjet printing is the preparation of ceramic ink. [0003] Ceramic ink is usually composed of ceramic pigment particles, solvents, dispersants a...

Claims

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Application Information

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IPC IPC(8): C08F293/00C08F220/18C08F220/60C09D11/326
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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