| 纳米TiO2表面接枝甲基丙烯酸甲酯的聚合反应 |
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| 引用本文： | 徐惠,史建新,翟钧,苟国俊,孙涛. 纳米TiO2表面接枝甲基丙烯酸甲酯的聚合反应[J]. 高分子材料科学与工程, 2008, 24(2): 27-30 |
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| 作者姓名： | 徐惠 史建新 翟钧 苟国俊 孙涛 |
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| 作者单位： | 1. 兰州理工大学,石油化工学院,甘肃,兰州,730050
2. 兰州理工大学,科学技术处,甘肃,兰州,730050 |
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| 摘 要： | 利用表面接枝的方法,在纳米TiO2上接枝偶联剂-γMPS(3-(三甲氧硅基)丙基异丁烯酸)形成"杂化"单体,通过加入引发剂引发甲基丙烯酸甲酯(MMA)在粒子表面发生自由基聚合,形成PMMA/γ-MPS/TiO2纳米复合粒子。通过IR、元素分析、TGA等方法表征了PMMA/-γMPS/TiO2纳米复合粒子的结构,定量研究了TiO2/-γMPS单体接枝率和转化率,PMMA/-γMPS/TiO2纳米复合粒子的接枝率及其相应的影响因素。结果表明:PMMA以化学键的形式连接在纳米TiO2粒子表面并具有较高的接枝率。
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| 关 键 词： | 硅烷偶联剂 纳米TiO2 聚甲基丙烯酸甲酯 聚合 纳米复合粒子 |
| 文章编号： | 1000-7555（2008）02-0027-04 |
| 收稿时间： | 2006-09-02 |
| 修稿时间： | 2006-12-26 |
The Radical Grafting Polymerization of MMA onto Nano-TiO2 Surface |
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| XU Hui,SHI Jian-xin,ZHAI Jun,GOU Guo-jun,SUN Tao. The Radical Grafting Polymerization of MMA onto Nano-TiO2 Surface[J]. Polymer Materials Science & Engineering, 2008, 24(2): 27-30 |
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| Authors: | XU Hui SHI Jian-xin ZHAI Jun GOU Guo-jun SUN Tao |
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| Affiliation: | 1(1.College of Petrochemical Engineering;2.Department of Science and technology,Lanzhou University of Technology,Lanzhou 730050,China) |
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| Abstract: | γ-MPS [3-(trimethoxysilyl)propyl methacrylate] have been grafted onto the surface of TiO2 to form organic-inorganic hybrid ’macromonomers’.Poly(methyl methacrylate)/TiO2 nanocomposite particles were synthesized in high yield via free radical polymerization.The nanocomposite particles was characterized by FT-IR spectroscopy,elemental analysis and TGA.Quantification of γ-MPS and PMMA grafting has been determined.The influence of the relative amount of silane used has been studied.It is demonstrated that Poly(methyl methacrylate) shell is chemically bonded to nano TiO2 core surface with a high coating efficiency. |
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| Keywords: | γ-MPS titanium dioxide poly(methylmethacrylate) polymerization nanocomposite |
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