Author/Authors :
Yi، نويسنده , , Wenhui and Malkovskiy، نويسنده , , Andrey and Xu، نويسنده , , Yongqian and Wang، نويسنده , , Xiao-Qian and Sokolov، نويسنده , , Alexei P. and Lebron-Colon، نويسنده , , Marisabel and Meador، نويسنده , , Michael A. and Pang، نويسنده , , Yi، نويسنده ,
Abstract :
A soluble π-conjugated polymer cis-PmPV is found to be twice as effective as its trans-PmPV isomer in dispersing SWNTs into organic solvents. The improved efficiency is related to the specific conformation of cis-vinylene-enriched PmPV, which facilitates a planar π–π interaction with SWNT surface and leads to improved nanotube dispersion. 1H NMR spectra indicate that the cis-CHCH bonds are partially converted to the trans-CHCH, thereby providing necessary conformational cavity for SWNT wrapping. Irradiation triggers a precipitation from SWNT dispersion, providing a purified SWNT/conjugated polymer composite.
