Nano particle surface modifying method

Abstract

The invention relates to a nanoparticle surface modification method, comprising following steps: the nanoparticle is processed by SOCl2, and is reacted with tert-butyl hydrogen peroxide (TBHP) to form into a peroxide solicitation radical; the free radical polymerization reaction is transferred by reverse atomy which is triggered through the surface, and the polymerization of the cinnamene monomer is triggered by the free radical polymerization reaction; thereby the nanometer compound particle which is enwrapped by the graft polystyrene on the surface of the nanoparticle is prepared. Due to the active compound particle at the end of the outer-layer polymer of the nanometer compound particle composed through the free radical polymerization reaction of reverse atomy transfer triggered by the surface, the active compound particle can be used as giant molecule evocating agent to trigger the methacrylic acid methyl ester monomer to implement free radical polymerization transfer through the atomy on the surface; after the two surface solicitation polymerizations, the nanometer compound particle which is enwrapped by the methacrylic acid methyl ester is prepared. The invention has the advantages that: a good organic and inorganic nanometer compound material can be prepared through the surface solicitation polymerization reactions, and the nanoparticle surface is modified successfully, and the dispersivity and stability of the nanoparticle can be improved.

Description

technical field [0001] A method for modifying the surface of nanoparticles relates to a method for modifying the surface of nanoparticles by adopting an organic synthesis method. Background technique [0002] Nano powder science and technology is a new science and technology developed in recent decades, and it is an important part of materials science. Since the report on nanomaterials in 1984, nanomaterials have attracted widespread attention for their excellent properties. Nanoparticles have basic characteristics such as small size effect, quantum size effect, surface effect and macroscopic quantum tunneling effect, and show specific functions compared with conventional materials in terms of magnetism, catalysis, light absorption, conductivity, hardness and melting point. After more than ten years of research, nanotechnology has gradually been applied in the fields of materials, microelectronics, ultra-micro sensors, bioengineering, optoelectronics and chemical industry. ...

AI Technical Summary

Problems solved by technology

[0004] However, the above methods all use specially synthesized silane coupling agents to anchor the initiator group to the surface of the inorganic substrate. These special silane coupling agents are difficult to synthesize and industrialized, thus limiting the application of the method.

Images