Nap Rikkert, Szleifer Igal
Department of Chemistry, Purdue University, 1393 Brown Building, West Lafayette, Indiana 47907-1393, USA.
Langmuir. 2005 Dec 20;21(26):12072-5. doi: 10.1021/la051601c.
We have investigated the interactions between single-walled carbon nanotubes, coated with polymer chains end-grafted to the tubes, and planar surfaces. By proper functionalization of the grafted polymers' free ends, we show how to obtain an attractive interaction that can be used to immobilize the tube at a desired distance from the surface. We demonstrate how the strength and distance of the minimal interaction can be controlled by the proper choice of polymer chain length, surface coverage, and type of functional end-group.
我们研究了涂覆有末端接枝到碳纳米管上的聚合物链的单壁碳纳米管与平面表面之间的相互作用。通过对接枝聚合物自由端进行适当的功能化，我们展示了如何获得一种吸引相互作用，该相互作用可用于将碳纳米管固定在距表面所需的距离处。我们证明了如何通过适当选择聚合物链长度、表面覆盖率和功能端基类型来控制最小相互作用的强度和距离。
