Dispersion of multi-walled carbon nanotubes with pyrene-functionalized polymeric micelles in aqueous media

作者：Petrov Petar D^*; Georgiev Georgi L; Mueller Axel H E

来源：Polymer, 2012, 53(24): 5502-5506.

DOI：10.1016/j.polymer.2012.09.046

• Carbon nanotubes
• Micelles
• Pyrene

Polymeric micelles with pendent pyrene groups form complexes with multi-walled carbon nanotubes (MWNTs) by pi-stacking and, thus, are able to disperse the tubes in water. Evidence is given by cryogenic transmission electron microscopy, scanning electron microscopy and atomic force microscopy. %26quot;Pluronic F38%26quot; (PEO-PPO-PEO) micelles with pendent pyrene groups were obtained via UV-induced crosslinking of pentaerythritol tetraacrylate within the micellar core. The pyrene moieties were attached to the periphery of the micelles via reacting OH-groups of F38 with pyrenebutyric acid. Stabilized polymeric micelles of different pyrene content (4, 6 and 9 mol% degree of substitution) were characterized by proton NMR, UV-Vis absorption and fluorescence spectroscopies and dynamic light scattering.

• 出版日期2012-11-9