Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for synthesizing polymer Janus particles with chemical and topological anisotropic properties

A synthesis method and anisotropic technology, applied in the field of materials, can solve the problems of poor particle uniformity and monodispersity, low preparation yield, no chemical composition or topological structure tunability, etc., and achieve a simple and easy post-processing method. The effect is easy to control, the experimental conditions are easy to control, and the synthesis process is simple.

Active Publication Date: 2017-11-24
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
View PDF4 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems are as follows: 1) The synthesis of most Janus particles needs to be completed in a specific system, including specific raw materials and preparation conditions; 2) The chemical composition or morphology of Janus particles is single, and there is no adjustable chemical composition or topology and; 3) the preparation yield is low; 4) the obtained particle uniformity and monodispersity are poor; 5) the synthesis and post-treatment process are complex, etc., these problems limit the further application of Janus particles to a large extent

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for synthesizing polymer Janus particles with chemical and topological anisotropic properties
  • Method for synthesizing polymer Janus particles with chemical and topological anisotropic properties
  • Method for synthesizing polymer Janus particles with chemical and topological anisotropic properties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]Disperse 200 mg of spherical polystyrene microspheres with a particle diameter of 1 μm in 20 mL of a deionized aqueous solution of sodium dodecylbenzenesulfonate at a concentration of 2.5 g / L to obtain a first mixed solution. The first mixed solution The concentration of spherical polystyrene microspheres is 10 mg / mL; 100 μL of chlorododecane (1-CD) is added to 10 mL of 2.5 g / L sodium dodecylbenzenesulfonate deionized aqueous solution , then ultrasonically emulsify with an ultrasonic cell disruptor for 60s to obtain a second mixed solution, the concentration of the organic solvent in the second mixed solution is 0.01mL / mL; the second mixed solution is mixed with the first mixed solution, The first stirring reaction was carried out at 40°C for 24 hours; the third mixed solution was obtained;

[0048] Styrene, divinylbenzene, azobisisobutyronitrile and acrylic acid were added to 10 mL of 2.5 g / L sodium dodecylbenzenesulfonate deionized aqueous solution, and then ultrasonic...

Embodiment 2 to 8

[0052] Except the content in Table 1, others are all carried out in the same manner as Example 1.

[0053] Synthesis conditions and performance parameters of the polymer Janus particles synthesized in embodiments 1 to 8

[0054]

[0055]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for synthesizing polymer Janus particles with chemical and topological anisotropic properties. The synthesis method means subjecting hydrophobic monomers and hydrophilic monomers to a copolymerization reaction at an oil-water interface by an interfacial polymerization method, thereby obtaining the polymer Janus particles with chemical and topological anisotropic properties. The polymer Janus particles synthesized by the method simultaneously have chemical and topological anisotropic properties, chemical ingredients can be randomly regulated, and surfaces of the polymer Janus particles can be modified again; and meanwhile, a topological structure is adjustable, and thus, the synthesis of anisotropic polymer Janus particles of a variety of morphological structures can be achieved. The method disclosed by the invention is simple in synthesis process, easy in control of experimental conditions and easy and feasible in aftertreatment method and has a certain industrialized application value.

Description

technical field [0001] The invention belongs to the technical field of materials, in particular to a method for synthesizing polymer Janus particles with chemical and topology anisotropy. Background technique [0002] Janus particles refer to particles with dual properties, which were proposed by the famous French scientist De Gelmes at the Nobel Prize Awarding Conference in 1991. Due to the different chemical composition and special morphology of Janus particles, the unique physical and chemical properties of this type of microspheres have aroused great research interest. Chemically and topologically tunable Janus particles have great application prospects in many aspects such as surfactants, displays, catalysts, cell imaging and recognition, controlled release of drugs, sensors and nanomotors. [0003] At present, the methods for synthesizing anisotropic Janus particles mainly include: seed emulsion polymerization method, block copolymer self-assembly method, continuous f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08F257/02C08F212/08C08F212/36C08F220/06C08F222/02C08F220/14C08F220/22C08F212/32C08F2/24
CPCC08F2/24C08F257/02C08F212/08C08F212/36C08F220/14C08F220/22C08F212/32
Inventor 王树涛樊俊兵宋永杨江雷
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com