Reversible water-solubilization of single-walled carbon nanotubes by polymer wrapping
Reversible water-solubilization of single-walled carbon nanotubes by polymer wrapping
复制标题
DOI：
10.1016/s0009-2614(01)00490-0
复制
发表时间：
2001-07-13
影响因子：
2.8
通讯作者：
Smalley, RE
中科院分区：
文献类型：
--
作者：
O'Connell, MJ;Boul, P;Smalley, RE
单壁碳纳米管（SWNT）通过与线性聚合物非共价结合而溶解于水中，最成功的是与聚乙烯吡咯烷酮（PVP）和聚苯乙烯磺酸盐（PSS）结合。这种缔合的特征在于聚合物与纳米管侧面的紧密、均匀缔合。这种包装的一般热力学驱动进行了讨论，其中聚合物破坏与水的疏水界面和光滑的管-管的相互作用在聚集体。纳米管可以通过改变溶剂系统来展开。这种溶解过程打开了对原始纳米管的溶液化学的大门，以及将其引入生物相关系统。(C)2001 Elsevier Science B. V.保留所有权利。
Single-walled carbon nanotubes (SWNTs) have been solubilized in water by non-covalently associating them with linear polymers, most successfully with polyvinyl pyrrolidone (PVP) and polystyrene sulfonate (PSS). This association is characterized by tight, uniform association of the polymers with the sides of the nanotubes. A general thermodynamic drive for this wrapping is discussed, wherein the polymer disrupts both the hydrophobic interface with water and the smooth tube-tube interactions in aggregates. The nanotubes can be unwrapped by changing the solvent system. This solubilization process opens the door to solution chemistry on pristine nanotubes, as well as their introduction into biologically relevant systems. (C) 2001 Elsevier Science B.V. All rights reserved.