聚乙烯/马来酸酐接枝聚合物修饰多壁碳纳米管

王国建; 金吉琼

聚乙烯/马来酸酐接枝聚合物修饰多壁碳纳米管

1. 同济大学材料科学与工程学院|上海 201804;

2.
先进土木工程材料教育部重点实验室(同济大学)|上海 201804

详细信息

作者简介:
王国建(1953-), 男|浙江诸暨人|博士|教授,博士生导师,主要从事高分子活性聚合、高分子功能材料和涂料等方面的教学和研究工作. E-mail: wanggj@tongji.edu.cn

中图分类号: 　TB 332
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出版历程
- 录用日期: 2012-07-20
- 刊出日期: 2012-02-20

Chemical modification of multiwalled carbon nanotubes by polyethylene-grafted maleic anhydride

1. School of Materials Science and Engineering, Tongji University, Shanghai 201804, China|

2.
Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Shanghai 201804, China

More Information

Author Bio:
WANG Guo-jian (1953-), male, Ph. D., Professor, engaged in the teaching and research work of polymer living polymerization, polymer functional materials and coatings. E-mail: wanggj@tongji.edu.cn

摘要

摘要: 多壁碳纳米管（MWCNTs）与混酸（浓硫酸∶浓硝酸体积比为3∶1）和无水乙二胺进行酸化、胺化反应使MWCNTs表面产生羧基和氨基基团，进而与聚乙烯/马来酸酐接枝聚合物（PE-g-MA）发生开环反应制备PE-g-MWCNTs，以提高MWCNTs在聚乙烯基体中的分散性。采用红外光谱、X-射线光电子能谱(XPS)和拉曼光谱对MWCNTs的化学修饰进行定性表征。结果表明：当MWCNTs的体积分数为0.67%时，MWCNT/PE复合材料的体积电阻率发生渗流突变。MWCNTs的体积分数在0.1%~1.2%时，MWCNT/PE复合材料体积电阻率由10¹6Ω · m下降至10⁵Ω · m
- 多壁碳纳米管 /
- 聚乙烯/马来酸酐接枝共聚物 /
- 化学修饰
Abstract: Multiwalled carbon nanotubes (MWCNTs) were oxidized by an acid mixture (concentrated H₂SO₄∶HNO₃ =3∶1v/v) to form carboxyl groups, which were then reacted with anhydride ethylene diamine by an amidation reaction to introduce amine end groups that were subsequently grafted to polyethylene/maleic anhydride copolymer (PE-g-MA) to increase the dispersion of the modified MWCNTs in a polyethylene (PE) matrix. The chemical modification of the MWCNTs was verified by FTIR, XPS and Raman spectroscopy. The modified MWCNT/PE composites exhibited an electrical percolation threshold at 0.67 vol% MWCNTs. The volume resistivities of the modified MWCNT/PE composites decreased from 10¹6 to 10⁵Ω · m with increasing MWCNT content from 0.1 to 1.2 vol%
- Multiwalled carbon nanotubes /
- Polyethylene/maleic anhydride graft copolymer /
- Chemical modification

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聚乙烯/马来酸酐接枝聚合物修饰多壁碳纳米管

作者简介:
王国建(1953-), 男|浙江诸暨人|博士|教授,博士生导师,主要从事高分子活性聚合、高分子功能材料和涂料等方面的教学和研究工作. E-mail: wanggj@tongji.edu.cn

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Chemical modification of multiwalled carbon nanotubes by polyethylene-grafted maleic anhydride

Author Bio:
WANG Guo-jian (1953-), male, Ph. D., Professor, engaged in the teaching and research work of polymer living polymerization, polymer functional materials and coatings. E-mail: wanggj@tongji.edu.cn

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聚乙烯/马来酸酐接枝聚合物修饰多壁碳纳米管

作者简介: 王国建(1953-), 男|浙江诸暨人|博士|教授,博士生导师,主要从事高分子活性聚合、高分子功能材料和涂料等方面的教学和研究工作. E-mail: wanggj@tongji.edu.cn

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出版历程

Chemical modification of multiwalled carbon nanotubes by polyethylene-grafted maleic anhydride

Author Bio: WANG Guo-jian (1953-), male, Ph. D., Professor, engaged in the teaching and research work of polymer living polymerization, polymer functional materials and coatings. E-mail: wanggj@tongji.edu.cn

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作者简介:
王国建(1953-), 男|浙江诸暨人|博士|教授,博士生导师,主要从事高分子活性聚合、高分子功能材料和涂料等方面的教学和研究工作. E-mail: wanggj@tongji.edu.cn

Author Bio:
WANG Guo-jian (1953-), male, Ph. D., Professor, engaged in the teaching and research work of polymer living polymerization, polymer functional materials and coatings. E-mail: wanggj@tongji.edu.cn