Mechanical properties and morphology of papers prepared from single-walled carbon nanotubes functionalized with aromatic amides

作者：Steiner Simon^*; Busato Stephan; Ermanni Paolo

来源：Carbon, 2012, 50(5): 1713-1719.

DOI：10.1016/j.carbon.2011.12.001

Carbon nanotube papers (CNT papers, also referred to as "bucicypapers") prepared from chemically functionalized single-walled CNTs are being investigated for their mechanical tensile properties. While the Young's moduli are unaffected by the functionalization with diazonium salts of aniline or aromatic mono- and bis-amides tensile strengths of CNT papers are found to increase with a growing degree of functionalization, and more pronounced with a growing number of amide groups capable of hydrogen bonding. The importance of hydrogen bonding becomes evident after its inhibition through N-methylation of the amide groups, resulting in a distinct reduction of strength values. Scanning electron micrography indicates that a high degree of functionalization or a high number of amide group results in the formation of domains with aligned CNTs.

• 出版日期2012-4