Two oligo(phenylenevinylene)s with cyanobiphenyl terminates were synthesized as non-covalent modifiers of single walled carbon nanotubes (SWNTs). The wrapping of SWNTs with synthesized oligomers enhanced the dispersibility in CHCl3 by the dissociation of SWNT bundle structures. It was found that the addition of oligomers caused self-organized precipitation from a homogeneous dispersed solution of SWNT complexes. The self-organized precipitates exhibited thermotropic liquid-crystalline properties.
我们合成了两种以
氰基
联苯为末端的低聚物(苯基
乙烯基),作为单壁碳纳米管(SWNT)的非共价改性剂。用合成的低聚物包裹 SWNT,可通过解离 SWNT 束结构提高其在
CHCl3 中的分散性。研究发现,加入低聚物后,SWNT 复合物会从均匀分散的溶液中产生自组织沉淀。自组织沉淀物具有热致性液晶特性。