多壁碳纳米管的共价修饰及分散性研究

材料导报, 2008, 22(Z2): 90-99.

1.河南工业大学化学化工学院,郑州,450001

2.河南工业大学化学化工学院,郑州,450001

3.河南工业大学化学化工学院,郑州,450001

4.河南省商业科学研究所有限责任公司,郑州,450002

5.河南工业大学化学化工学院,郑州,450001

Studies of Covalent Modification and Dispersivity of Multiwalled Carbon Nanotubes

通过原位酯交换聚合,在多壁碳纳米管(MWNTs)表面接枝多羟基超支化聚(胺-酯).采用SEM和TGA对改性前后MWNTs的表面形貌及热性能进行了分析研究,考察了修饰前后MWNTs在常见溶剂中的分散能力.结果发现经超支化聚(胺-酯)修饰过的多壁碳纳米管易分散于多种溶剂中,在水中可保持1个月不沉淀.

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