Method for preparing quantum point with hyperbranched polymer supermolecule nano-reactor

A technology of hyperbranched polymers and nanoreactors, applied in chemical instruments and methods, luminescent materials, etc.
CN101343540AInactive Publication Date: 2009-01-14SHANGHAI JIAO TONG UNIV
0 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2009-01-14
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention relates to a preparation method for quantum dot by using an ultra-branch type polymer supermolecule nano-reactor, which belongs to the chemical field. The method of the invention adopts a principle that the assembling precedes the sealing, the ultra-branch type polymer and long chain fatty acld can become amphiphilic supermolecule nano-micelle by self-assemble after compounding, and then quantum dots with homogeneous dimensions can be prepared by using the supermolecule nano-micellse in an oil-water biphasic system. The synthetic CdS quantum dots of the invention are provided with a narrow size distribution and a good stability. Because the dimensions of ultra-branch type polymer and long chain fatty acld are adjustable, the dimension and the shape of the obtained supermolecule nano-micelle are easy to be controlled, so that the supermolecule nano-micelle can be used for preparing quantum dots with various dimensions and shapes. In addition, the supermolecule nano-micelle is provided with invertibility, the micelle can be destroyed through adding spasmolytol or adjusting pH value, thus the CdS quantum dots synthesized in an organic system can be transferred into an aqueous phase system.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a preparation method in the technical field of chemical engineering, in particular to a method for preparing quantum dots using a hyperbranched polymer supramolecular nanoreactor. Background technique

[0002] The hyperbranched polymer molecule has an irregular three-dimensional quasi-spherical structure, and the molecule contains linear, branched and terminal structural units. Some functional groups are located on the surface of the molecule, and some exist in the interior of the molecule; the hyperbranched polymer has good solubility and is small solution and melt viscosity, with a large number of terminal functional groups and intramolecular voids, etc. In addition, the synthesis process of hyperbranched polymers is simple and can be synthesized by one-step method. Hyperbranched polymers have good application prospects in drug carriers, polymer catalysts, curing agents, solvent-free coatings and polymer processing aids, etc...

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