Synthesis of a dendrimeric phenoxy-substituted cyclotetraphosphazene and its non-covalent interactions with multiwalled carbon nanotubes

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• 作者：Elif Okutan ; B眉nyemin 脟o艧ut ; Saadet Beyaz Kay谋ran ; Mahmut Durmu艧 ; Adem K谋l谋莽 ; Serkan Ye艧ilot
• 关键词：蟺&ndash ; 蟺 stacking ; Phosphazene ; Carbon nanotube
• 刊名：Polyhedron
• 出版年：8 January, 2014
• 年：2014
• 卷：67
• 期：Complete
• 页码：344-350
• 全文大小：1612 K

文摘

A dendrimeric phenoxy-substituted cyclotetraphosphazene has been prepared for the non-covalent functionalization of multiwalled carbon nanotubes (MWCNTs). The synthesized cyclotetraphosphazene derivatives (2-4) and dendrimeric cyclotetraphosphazene (5) have been characterized by standard spectroscopic techniques. The functionalization of MWCNTs with compound 5 has been accomplished and the resulting MWCNT-5 hybrid has been characterized by ³¹P NMR, ¹H NMR, Raman spectroscopy, X-ray diffraction (XRD), energy dispersive X-ray (EDX), fluorescence, thermal gravimetric analysis (TGA) and high-resolution transmission electron microscopy (HRTEM) techniques. The results showed that the dendrimeric compound 5 has been attached to the MWCNTs via non-covalent 鈥溝€-蟺鈥?interactions between the phenoxy groups on the dendrimeric compound 5 and the extended 蟺 system of the MWCNTs. The MWCNT-5 hybrid exhibited significant dispersion stability in common organic solvents.