聚合物辅助碳纳米管定向定位排列

POLYMER-ASSISTED ALIGNMENT AND ASSEMBLY OF CARBON NANOTUBES

探讨了聚合物对碳纳米管的不同表面修饰作用,总结了聚合物对碳纳米管的共价与非共价修饰方法,修饰后的碳纳米管在水溶液或不同极性有机溶剂、聚合物本体中的分散性得到了改善,更为碳纳米管的阵列化提供了前提.以碳纳米管的后排列为中心,主要综述了聚合物辅助下的碳纳米管垂直和水平方向上的定向排列方法,及近年来碳纳米管阵列化的研究进展,阐述了聚合物对碳纳米管的表面修饰及辅助碳纳米管实现阵列化的重要作用,提出了利用聚合物体系的自组织特性诱导碳纳米管自组装阵列化可以为实现单根碳纳米管的定向定位控制及纳米尺度功能器件的制备提供更多的可能.

The surface modification of polymers on carbon nanotubes（CNTs） by means of covalent and noncovalent methods were summarized.The dispersibilityof the modified CNTs in aqueous solutions,polar organic solvents or polymer matrices is improved through modification.The uniform dispersion of CNTs is an important prerequisite for realizing CNT arrays.In this article,the vertical and horizontalalignment methods of CNTs with polymer assistance,as well as the recent progress in research on alignment and assembly of CNTs were reviewed on the aspect of post-growth ways.Polymers could play an importantrole in the surface modification of CNTs and the realization of CNT arrays.Moreover,polymer induced self-assembled alignment of CNTs provides a new approach to achieving the control of individualCNT and the fabrication of nano-scaled functional devices.