Dynamics of functionalized single wall carbon nanotubes in solution studied by incoherent neutron scattering experiments

摘要: We have studied, by incoherent neutron scattering experiments, the dynamics of a colloidal suspension functionalized single wall carbon nanotubes (SWNTs). The been with pentyl ester groups attached at ends and suspended in deuterated toluene concentration 2.6 mg SWNT/1 ml toluene. experimental techniques were elastic (IENS) quasielastic (IQNS). In temperature range between 4 K 300 K, three phases observed IENS measurements: solid phase for T Tm. Furthermore, high undercooled liquid phase, hysteresis loops heating cooling scans observed. lower limit loop defines critical crossover Tc. IQNS measurements scan performed. Three different peaks identified, two another one phase. widths are discussed as generalized diffusion function which can be factorized dependent Q structure function. From comparison viscosity toluene, we conclude that components long-time Brownian motion other short-time motion.