ONE-POT FACILE PREPARATION OF TiO2-GRAFT-POLY(METHYL METHACRYLATE) HYBRID NANOPARTICLES VIA CU2+-AMINE REDOX INITIATED RADICAL POLYMERIZATION

Rong Wu; Guang-qun Zhai

doi:10.3724/SP.J.1105.2013.12191

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ONE-POT FACILE PREPARATION OF TiO2-GRAFT-POLY(METHYL METHACRYLATE) HYBRID NANOPARTICLES VIA CU2+-AMINE REDOX INITIATED RADICAL POLYMERIZATION

Research Article | 更新时间：2021-03-19

- ONE-POT FACILE PREPARATION OF TiO2-GRAFT-POLY(METHYL METHACRYLATE) HYBRID NANOPARTICLES VIA CU2+-AMINE REDOX INITIATED RADICAL POLYMERIZATION
- Acta Polymerica Sinica Issue 2, Pages: 191-198(2013)
- 作者机构：
  
  常州大学材料科学与工程系,常州,213164
- 作者简介：
- 基金信息：
- DOI：10.3724/SP.J.1105.2013.12191
  CLC：
- Published：20 February 2013，
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Rong Wu, Guang-qun Zhai. ONE-POT FACILE PREPARATION OF TiO2-GRAFT-POLY(METHYL METHACRYLATE) HYBRID NANOPARTICLES VIA CU2+-AMINE REDOX INITIATED RADICAL POLYMERIZATION. [J]. Acta Polymerica Sinica (2):191-198(2013)
DOI：

Rong Wu, Guang-qun Zhai. ONE-POT FACILE PREPARATION OF TiO2-GRAFT-POLY(METHYL METHACRYLATE) HYBRID NANOPARTICLES VIA CU2+-AMINE REDOX INITIATED RADICAL POLYMERIZATION. [J]. Acta Polymerica Sinica (2):191-198(2013) DOI： 10.3724/SP.J.1105.2013.12191.

摘要

提出并验证了一种通过普通自由基聚合在纳米TiO2表面接枝聚甲基丙烯酸甲酯的简单方法.通过在纳米TiO2粒子表面引入伯胺分子层(纳米TiO2-NH2粒子)

利用Cu2+-胺氧化还原体系实现了CuSO4催化纳米TiO2-NH2粒子表面引发甲基丙烯酸甲酯(MMA)的自由基接枝聚合

从而一步得到表面固定有聚甲基丙烯酸甲酯链的纳米TiO2杂化粒子(纳米TiO2-PMMA杂化粒子).红外光谱、热失重分析与电镜的结果都表明PMMA已经被接枝到纳米TiO2粒子表面

且接枝率随着聚合时间的延长而逐渐增大

PMMA链的引入有助于降低纳米TiO2粒子微球的团聚程度、增强与有机溶剂分子的范德华力

从而提高分散稳定性.反应溶液中没有游离均聚物形成.

Abstract

A novel strategy was proposed and then verified to graft poly(methyl methacrylate) chains from TiO2 nanoparticle surface (the TiO2-PMMA hybrid nanoparticles) via Cu2+-amine redox-initiated conventional radical polymerization.CuSO4-catalyzed surface-initiated radical polymerization of methyl methacrylate (MMA) was carried out in dimethylsufoxide (DMSO) from the TiO2 nanoparticles surface functionanlized with amine layers (the TiO2-NH2 nanoparticles) to prepare the TiO2-PMMA hybrid nanoparticles.The results from infrared spectroscopy

thermogravimetric analysis and electron microscopy showed that PMMA was successfully immobilized onto the TiO2 nanoparticle surface

the grafting yield increased with the reaction time

and the presence of PMMA chains hindered the further agglomeration and accordingly improved the dispersion stability in organic media.As there was no free PMMA chains in the reacting mixture

our strategy provided a facile and universal route to the hybrid nanoparticles of application potentials.

关键词

TiO2甲基丙烯酸甲酯纳米杂化粒子铜胺氧化还原引发表面引发自由基聚合

Keywords

TiO2Methyl methacrylateHybrid nanoparticleCu2+-amine redox initiationSurface-initiated radical polymerization

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Related Institution

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology

State Key Laboratory of Chemical Engineering(Zhejiang University), College of Chemical Engineering and Biochemical Engineering, Zhejiang University

School of Chemistry and Chemical Engineering, Hefei University of Technology

Key Laboratory of Advanced Functional Materials and Devices

The Center of New Energy Materials and Technology, School of Materials Science and Engineering, Southwest Petroleum University

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