羧基化碳纳米管的酯化与酰氯化修饰研究

STUDY ON ESTERIFICATION AND ACYLATION MODIFICATION OF CARBON NANOTUBES FUNCTIO NALIZED WITH CARBOXYLIC GROUP

采用稀硝酸和浓硝酸、浓硝酸和浓硫酸两种方法在碳纳米管上引入羧酸基团,利用羧酸基团修饰的碳纳米管分别与溴代正丁烷和氯化亚砜反应,在碳纳米管上引入了酯基和酰氯基团,采用红外光谱对所引入的基团进行了表征验证,为碳纳米管的进一步功能化和应用提供了实验方法。

Carboxyl groups were attached to the sidewall and tips of carbon na no tubes treated by nitric acid and the mixture of concentrated nitric acid and con centrated vitriol. Following the oxidation pretreatment, ester groups and acyl c hloride groups were introduced to the carbon nanotubes via the carboxyl groups a ttached to carbon nanotubes. The organic groups attached to carbon nanotubes was characterized by FT-IR. The method presented here is useful for further functi onalization and modification of carbon nanotubes.