Preparing method for synthesizing shape-controlled anisotropic particles through emulsion polymerization based on asymmetry monomer-swelling non-crosslinking seed particles

An anisotropic and emulsion polymerization technology, which is applied in the field of preparation of shape-controlled anisotropic particles based on emulsion polymerization of asymmetric monomers-swollen non-crosslinked seed particles, achieving the promotion of theoretical and technological development and wide application value Effect

Inactive Publication Date: 2016-06-01
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the formation of monomer-swelling particles with multi-liquid protrusions on the surface through non-crosslinked seed particles, and the construction of anisotropic Patchy particles have not been reported yet.

Method used

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  • Preparing method for synthesizing shape-controlled anisotropic particles through emulsion polymerization based on asymmetry monomer-swelling non-crosslinking seed particles
  • Preparing method for synthesizing shape-controlled anisotropic particles through emulsion polymerization based on asymmetry monomer-swelling non-crosslinking seed particles
  • Preparing method for synthesizing shape-controlled anisotropic particles through emulsion polymerization based on asymmetry monomer-swelling non-crosslinking seed particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: Preparation of morphology-controllable anisotropic particles based on emulsion polymerization of asymmetric monomer-swelling non-crosslinked seed particles

[0035] (1) Preparation of monodisperse polyglycidyl methacrylate (PGMA) polymer seeds:

[0036] Prepare a polyvinylpyrrolidone alcohol / water solution with a mass fraction of 7%, wherein the volume ratio of alcohol to water is 10:1, and put it in a three-necked bottle equipped with a mechanical stirring and condensing device; add methyl alcohol dissolved in an initiator to the above solution. Glycidyl acrylate (GMA), wherein the initiator accounts for 1.0% of the GMA mass, and the volume ratio of GMA and alcohol / water solution is 1:7; then the system is warmed up to 80°C, and reacted for 12h under 100r / min mechanical stirring; The resulting product was washed three times with ethanol and water respectively, and dried to obtain PGMA polymer seeds;

[0037] (2) Preparation of asymmetric monomer-swelling pa...

Embodiment 2

[0041] Example 2: Preparation of morphology-controllable anisotropic particles based on emulsion polymerization of asymmetric monomer-swelling non-crosslinked seed particles

[0042] (1) Preparation of monodisperse polyglycidyl methacrylate (PGMA) polymer seeds:

[0043] Prepare a polyvinylpyrrolidone alcohol / water solution with a mass fraction of 2%, wherein the volume ratio of alcohol to water is 2:1, and put it in a three-necked bottle equipped with a mechanical stirring and condensing device; add methyl alcohol dissolved in an initiator to the above solution Glycidyl acrylate (GMA), wherein the initiator accounts for 0.5% of the GMA mass, and the volume ratio of GMA and alcohol / water solution is 1:7; then the system is warmed up to 80°C and reacted for 12h under 100r / min mechanical stirring; The resulting product was washed three times with ethanol and water respectively, and dried to obtain PGMA polymer seeds;

[0044] (2) Preparation of asymmetric monomer-swelling parti...

Embodiment 3

[0048] Example 3: Preparation of morphology-controllable anisotropic particles based on emulsion polymerization of asymmetric monomer-swelling non-crosslinked seed particles

[0049] (1) Preparation of monodisperse polyglycidyl methacrylate (PGMA) polymer seeds:

[0050] Prepare a polyvinylpyrrolidone alcohol / water solution with a mass fraction of 5%, wherein the volume ratio of alcohol to water is 9:1, and put it in a three-necked bottle equipped with a mechanical stirring and condensation device; add methyl alcohol dissolved in the initiator to the above solution. Glycidyl acrylate (GMA), wherein the initiator accounts for 1.0% of the GMA mass, and the volume ratio of GMA and alcohol / water solution is 1:5; then the system is warmed up to 80°C, and reacted for 8h under 200r / min mechanical stirring; The resulting product was washed three times with ethanol and water respectively, and dried to obtain PGMA polymer seeds;

[0051] (2) Preparation of asymmetric monomer-swelling p...

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Abstract

The invention relates to a preparing method for synthesizing shape-controlled anisotropic particle through emulsion polymerization based on asymmetry monomer-swelling non-crosslinking seed particles. Non-crosslinking monodisperse polymer particles are used as a seed particle, protruded asymmetry monomer-swelling particle with liquid attached to the surface are obtained through an improved dual swelling polymerizing technique, and the shape-controlled anisotropic particles can be obtained through emulsion polymerization based on the asymmetry monomer-swelling particles. The prepared anisotropic particles have wide application value in the fields of light reflection, self assembling, catalyst carrier immobilization and biological macromolecule immobilization. Furthermore, the preparing method has an improving effect on both theory and technique of seed polymerization.

Description

technical field [0001] The invention belongs to the preparation of polymer materials, in particular to a preparation method for synthesizing morphology-controllable anisotropic microparticles based on asymmetric monomer-swelling non-crosslinked seed particle emulsion polymerization, using non-crosslinked monodisperse polymer particles As seeds, asymmetric monomer-swelling particles were obtained by using improved double swelling polymerization technology, and on this basis, morphology-controllable anisotropic particles were obtained by emulsion polymerization. Background technique [0002] In recent years, colloidal particles with controllable morphology and narrow particle size distribution have attracted the research interest of many researchers, and are widely used in sensing, self-assembly, drug delivery and controlled release, solid surfactants, biomacromolecules, etc. Carriers (enzymes and proteins), catalysts, surface-enhanced Raman scattering, and superhydrophilic an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/04C08F212/08C08F212/14C08F212/12C08F220/14C08F220/18C08F220/32C08F220/44C08F2/26C08F2/30
CPCC08F2/26C08F2/30C08F265/04C08F220/325C08F212/14C08F220/1804
Inventor 张秋禹田雷赵盼盼张宝亮张和鹏
Owner NORTHWESTERN POLYTECHNICAL UNIV
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