| 原位聚合法制备炭黑/聚甲基丙烯酸酯导电复合材料 |
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| 引用本文： | 董先明,罗颖,张淑婷,符若文,章明秋.原位聚合法制备炭黑/聚甲基丙烯酸酯导电复合材料[J].高分子材料科学与工程,2007,23(3):43-46. |
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| 作者姓名： | 董先明 罗颖 张淑婷 符若文 章明秋 |
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| 作者单位： | 华南农业大学理学院应用化学系,广东,广州,510642;中山大学材料科学研究所,广东,广州,510275;中山大学材料科学研究所,广东,广州,510275 |
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| 基金项目： | 国家自然科学基金重点项目(50133020)，广东省自然科学基金博士启动项目(5300841)，华南农业大学博士启动基金(2005K118) |
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| 摘 要： | 通过原位聚合法制备了炭黑/聚甲基丙烯酸甲酯(CB/PMMA)、炭黑/聚甲基丙烯酸丁酯(CB/PB-MA)和炭黑/聚甲基丙烯酸2-乙基己酯(CB/PEHMA)三种导电复合材料,研究了这三种聚合物基体对复合材料的导电性影响。结果表明:由于炭黑的阻聚作用,当复合材料的炭黑含量增加时,均聚物的数均分子量呈下降趋势,多分散性系数PDI变大。而且炭黑粒子表面发生了接枝聚合反应,这有利于炭黑粒子在聚合物基体中的分散。当聚合物基体的玻璃化温度Tg较高时,复合材料逾渗阈值较低。
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| 关 键 词： | 炭黑 聚合物基复合材料 导电性 |
| 文章编号： | 1000-7555（2007）03-0043-04 |
| 修稿时间： | 2006-02-22 |
Conductive Carbon Black/Polymethacrylate Composites Prepared by In-Situ Polymeriration |
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| DONG Xian-ming,LUO Ying,ZHANG Shu-ting,FU Ruo-wen,ZHANG Ming-qiu.Conductive Carbon Black/Polymethacrylate Composites Prepared by In-Situ Polymeriration[J].Polymer Materials Science & Engineering,2007,23(3):43-46. |
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| Authors: | DONG Xian-ming LUO Ying ZHANG Shu-ting FU Ruo-wen ZHANG Ming-qiu |
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| Affiliation: | 1. Department of Applied Chemistry, College of Sciences, South China Agricultural University, Guangzhou 510642, China; 2. Materials Science Institute, Zhongshan University, Guangzhou 510275, China |
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| Abstract: | Conductive carbon black/poly(methyl methacrylate)(CB/PMMA),carbon black/ poly(butyl methacrylate)(CB/PBMA) and carbon black/poly(2-ethylhexyl methacrylate)(CB/PEHMA) composites were prepared by in-situ polymerization in this work.The effects of polymer matrix on electrical conductivity of the composites were studied.The experimental results indicate that the number-average molecular weight of the polymer synthesized decreases and the polydispersity index(PDI) is broadened with a rise of carbon black content due to the retardation of carbon black.The composites obtained possess a low percolation threshold when the glassy transition temperature of the polymer matrices is high. |
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| Keywords: | carbon black polymer-matrix composites electrical properties |
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