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Method for preparing polyhydroxyethyl methacrylate-titanium dioxide nanometer hybrid material

A technology of poly(hydroxyethyl methacrylate) and hydroxyethyl methacrylate, which is applied in the field of preparing poly(hydroxyethyl methacrylate-titanium dioxide) nano-hybrid materials, which can solve limitations, copper quenching fluorescence, copper ion residues, etc. problem, to achieve the effect of reducing copper ion residue, good density chain and high stability

Active Publication Date: 2021-02-12
东北大学秦皇岛分校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional atom transfer radical polymerization is limited when the amount of copper catalyst added is high
The great challenge of ATRP is the problem of residual copper ions in the resulting polymer product, and trace copper will cause problems such as quenched fluorescence, biological and cytotoxicity, etc.

Method used

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  • Method for preparing polyhydroxyethyl methacrylate-titanium dioxide nanometer hybrid material
  • Method for preparing polyhydroxyethyl methacrylate-titanium dioxide nanometer hybrid material
  • Method for preparing polyhydroxyethyl methacrylate-titanium dioxide nanometer hybrid material

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Embodiment 1

[0057] The method for preparing polyhydroxyethyl methacrylate-titanium dioxide nano-hybrid material comprises the following steps:

[0058] S1. Preparation of nano-titanium dioxide with silver loaded on the surface: under ultraviolet light irradiation, silver is loaded on the surface of nano-titanium dioxide;

[0059] S2. Preparation of poly(hydroxyethyl methacrylate-titanium dioxide nano-hybrid material): under visible light, active polymerization of hydroxyethyl methacrylate is initiated on the surface of nano-titanium dioxide loaded with silver on the surface prepared in S1 to obtain a hybrid material.

Embodiment 2

[0061] The method for preparing polyhydroxyethyl methacrylate-titanium dioxide nano-hybrid material comprises the following steps:

[0062] S1. Preparation of nano-titanium dioxide with silver loaded on the surface: under ultraviolet light irradiation, silver is loaded on the surface of nano-titanium dioxide;

[0063] S2. Preparation of poly(hydroxyethyl methacrylate-titanium dioxide nano-hybrid material): under visible light, active polymerization of hydroxyethyl methacrylate is initiated on the surface of nano-titanium dioxide loaded with silver on the surface prepared in S1 to obtain a hybrid material.

[0064] The nano titanium dioxide is prepared by the following method: taking butyl phthalate, oleic acid, oleylamine and ethanol to prepare shuttle nano titanium dioxide through a hydrothermal method.

Embodiment 3

[0066] S1, the preparation of the nano-titanium dioxide of surface loading silver, specifically comprises the following steps:

[0067] S1.1. Dispersing nano-titanium dioxide in tetrahydrofuran to obtain a nano-titanium dioxide solution for subsequent use; wherein, the concentration of the nano-titanium dioxide solution is 0.28 g / mL;

[0068] S1.2. Add silver nitrate solution to the nano-titanium dioxide solution, mix well, and seal after 12 minutes of nitrogen gas; wherein, the silver nitrate solution refers to the tetrahydrofuran solution of silver nitrate, and the concentration of the silver nitrate solution is 0.008mol / L; according to the volume ratio , nano-titanium dioxide solution: silver nitrate solution=11: 7;

[0069] S1.3. Illuminate for 5 minutes under ultraviolet light to obtain silver-loaded nano-titanium dioxide on the surface;

[0070] S2, the preparation of polyhydroxyethyl methacrylate-titanium dioxide nano-hybrid material, specifically comprises the followi...

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PUM

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Abstract

The invention discloses a method for preparing polyhydroxyethyl methacrylate-titanium dioxide nano-hybrid material, comprising the following steps: S1, preparation of nano-titanium dioxide loaded with silver on the surface; S2, polyhydroxyethyl methacrylate-titanium dioxide nanometer Preparation of hybrid materials. A method for preparing polyhydroxyethyl methacrylate-titanium dioxide nano-hybrid material provided by the invention is a preparation method that minimizes copper ion residues, the system does not need any additives, and the obtained nano-hybrid material has relatively high Good density chain improves the safety of polymer use and saves the preparation cost. The preparation method of the invention has simple steps, easy operation, mild preparation conditions, easy control and high efficiency.

Description

technical field [0001] The invention relates to a method for preparing polyhydroxyethyl methacrylate-titanium dioxide nanometer hybrid material. Specifically, the invention belongs to the technical field of hybrid materials. Background technique [0002] In recent years, poly(hydroxyethyl methacrylate) (PHEMA) has shown potential application value in the biomedical field and has attracted increasing attention, such as being used in contact lenses, drug delivery devices, and tissue engineering. In addition, the inorganic-PHEMA hybrid materials exhibit better physical and mechanical properties such as heat resistance compared to conventional PHEMA materials. Inorganic-PHEMA hybrid materials have been previously reported, such as BaTiO 3 –PHEMA,ZnO –PHEMA,SiO 2 – PHEMA et al. [0003] Nevertheless, challenges remain in the development of inorganic-PHEMA hybrid materials, namely the weak chemical force between PHEMA and inorganic particles and the low grafting density of PHE...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F120/28C08F2/44C08K9/12C08K3/08
CPCC08F2/44C08F120/28C08K3/08C08K9/12C08K2003/0806C08K2201/011
Inventor 王海旺王欣魏新芳朱碧珊于茜玉张晓乐王炳筑孙海赟王宇涵姜贤涛林慧凤张亚静
Owner 东北大学秦皇岛分校
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