| 二甲基丙烯酸聚乙二醇酯的原子转移自由基交联聚合 |
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| 引用本文： | 张静志,金晓红,杜芬,俞强.二甲基丙烯酸聚乙二醇酯的原子转移自由基交联聚合[J].江苏石油化工学院学报,2005(3). |
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| 作者姓名： | 张静志 金晓红 杜芬 俞强 |
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| 作者单位： | 江苏工业学院材料科学与工程系，江苏工业学院，江苏工业学院，江苏工业学院材料科学与工程系 江苏常州213016，江苏常州213016 2004届毕业生，江苏常州213016 2004届毕业生，江苏常州213016 |
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| 基金项目： | 江苏省高校自然科学基金资助(03KJB150027) |
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| 摘 要： | 对二甲基丙烯酸酯进行原子转移自由基(ATRP)交联聚合,通过示差扫描量热方法研究了过渡金属卤化物、配体和反应温度对二甲基丙烯酸酯ATRP交联聚合动力学的影响。结果表明CuBr、CuCl和FeCl2可以催化二甲基丙烯酸酯的ATRP交联聚合,催化活性的顺序从大到小为FeCl2、CuBr、CuCl。配体对二甲基丙烯酸酯ATRP交联聚合具有较大的影响,TEDETA作为配体时聚合速率最快,双键转化率最高。升高温度可以提高聚合反应速率和双键转化率,其表观活化能为81.5 kJ/mol。
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| 关 键 词： | 二甲基丙烯酸酯 原子转移自由基聚合 过渡金属卤化物 配体 |
Kinetic Behavior of Atom Transfer Radical Polymerization of Dimethacrylates |
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| ZHANG Jing-zhi,JIN Xiao-hong,DU Fen,YU Qiang.Kinetic Behavior of Atom Transfer Radical Polymerization of Dimethacrylates[J].Journal of Jiangsu Institute of Petrochemical Technology,2005(3). |
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| Authors: | ZHANG Jing-zhi JIN Xiao-hong DU Fen YU Qiang |
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| Affiliation: | ZHANG Jing-zhi~1,JIN Xiao-hong~2,DU Fen~2,YU Qiang~1 |
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| Abstract: | The reaction kinetics for the atom transfer radical polymerization(ATRP) of polyethylene glycol dimethacrylates(PEGDMA) was investigated by differential scanning calorimetry.The effects of transition metal halides,ligands and reaction temperatures on the polymerization rate and double bond conversion were discussed.The results showed that CuBr,CuCl and FeCl_2 could serve as the catalyst to initiate the ATRP of PEGDMA,with the activity order:FeCl_2,CuBr,CuCl.The structure of ligand strongly influenced the kinetics of the ATRP.The fastest polymerization rate and the highest double bond conversion were observed when TEDETA was used as the ligand.Raising temperature could increase both polymerization rate and double bond conversion.The activation energies for the ATRP of PEGDMA was 81.5kJ/mol. |
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| Keywords: | dimethacrylate ATRP transition metal halides ligand |
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