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Preparation method of polymer microcapsule with high specific surface area

A high specific surface area, polymer technology, applied in the direction of microcapsule preparation, microsphere preparation, etc., to achieve a wide range of application prospects, reduce volatility and toxicity, and isolate active ingredients

Inactive Publication Date: 2019-03-12
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Combining the surface wrinkle morphology and the hollow structure of the microcapsules can not only realize the coating and isolation of the capsules, but also realize the control of the apparent properties. However, the preparation of such multifunctional high specific surface area polymer microcapsules has rarely been reported.

Method used

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  • Preparation method of polymer microcapsule with high specific surface area
  • Preparation method of polymer microcapsule with high specific surface area

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Example 1: Polyglycidyl methacrylate initiates polymerization of ethylene glycol dimethacrylate to prepare high specific surface area polymer microcapsules

[0020] Mix 6g of polyglycidyl methacrylate, 25g of ethylene glycol dimethacrylate monomer, 25g of water, and 30g of toluene, stir and emulsify at room temperature for 10 minutes, heat to 60°C, and react for 12 hours, then fully wash and remove Toluene, unpolymerized ethylene glycol dimethacrylate and polyglycidyl methacrylate dissolved in water to obtain poly(ethylene glycol dimethacrylate) microcapsules with high specific surface area.

Embodiment 2

[0021] Example 2: Polyglycidyl methacrylate initiates divinylbenzene polymerization to prepare high specific surface area polymer microcapsules

[0022] After mixing 4g of polyglycidyl methacrylate, 20g of divinylbenzene monomer, 25g of water, and 30g of cyclohexane, stir and emulsify at room temperature for 10 minutes, heat to 70°C, and react for 12 hours, then fully wash and remove cyclohexane Alkanes, unpolymerized divinylbenzene and polyglycidyl methacrylate dissolved in water to obtain polydivinylbenzene microcapsules with high specific surface area.

Embodiment 3

[0023] Example 3: Polyglycidyl methacrylate initiates N-methylolacrylamide polymerization to prepare high specific surface area polymer microcapsules

[0024] Mix 4g polyglycidyl methacrylate, 20g N-methylolacrylamide monomer, 30g water, and 30g cyclohexane, stir and emulsify at room temperature for 30 minutes, heat to 70°C, react for 12 hours, and wash thoroughly Cyclohexane, unpolymerized N-methylol acrylamide and polyglycidyl methacrylate dissolved in water are removed to obtain poly(N-methylol acrylamide) microcapsules with high specific surface area.

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Abstract

The invention relates to a preparation method of a polymer microcapsule with high specific surface area. The preparation method is characterized in that polyglycidyl methacrylate with surface activityand monomer polymerizing initiating function is used as a macromolecular emulsifier and a macromolecular initiator, and a reverse-phase emulsion polymerizing method is utilized; under the conditionsof using an oil phase as a continuous phase and adding no additional micromolecular emulsifier and micromolecular initiator, the polymerizing of hydrophobic crosslinking monomers is initiated, so as to obtain the polymer microcapsule with high specific surface area. The polymer microcapsule has the advantages that the characteristics of the capsule are realized, the influence on substances by environment is avoided, the active components are isolated, and the volatility and toxicity are decreased; by regulating and controlling the wrinkle form of the surface, the function of controlling sustainable release is realized; the broad application prospect is realized in multiple fields including medicines, foods, spices, cosmetics, coatings, pesticides, textiles and energy conservation.

Description

technical field [0001] The invention belongs to a preparation method of a polymer material, and relates to a preparation method of a polymer microcapsule with a high specific surface area. Background technique [0002] High specific surface area polymer microcapsules not only have the characteristics of capsules, protect substances from environmental influences, isolate active ingredients, reduce volatility and toxicity, but also change the tracking, release and capture functions of substances by regulating the surface wrinkle morphology And adhesion, to achieve controlled and sustainable release, it has a wide range of applications in many fields such as medicine, food, spices, cosmetics, coatings, pesticides, textiles and energy conservation. [0003] At present, the technology for preparing microcapsules is very mature, mainly including template method, layer-by-layer self-assembly method, spray drying method, interfacial polymerization method, phase separation method and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/06C08F222/14C08F265/04C08F212/36C08F220/58C08F222/40C08F2/30B01J13/18
CPCB01J13/185C08F2/30C08F265/04C08F265/06C08F212/36C08F220/58C08F222/40C08F222/102
Inventor 张秋禹刘锦刘毅彬张宝亮张和鹏
Owner NORTHWESTERN POLYTECHNICAL UNIV
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