Nanotapes formed through the air/water interfacial self-assembly of a bola-form pentanediamide derivative

• Published in: Colloids and surfaces. A, Physicochemical and engineering aspects Vol. 313-314; pp. 666 - 669
• Main Authors: Chen, Penglei, Chen, Zhen, Liu, Minghua
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.02.2008; Elsevier
• Subjects: Bola-form amphiphile; Chemistry; Colloidal state and disperse state; Exact sciences and technology; General and physical chemistry; Interfacial assembly; Langmuir blodgett films; Langmuir–Blodgett technique; Nanotape; Surface physical chemistry; Nanotape; Langmuir–Blodgett technique; Interfacial assembly; Bola-form amphiphile; Water; Self assembly; Langmuir-Blodgett technique; Langmuir Blodgett layer; Air; Nanotechnology
• ISSN: 0927-7757; 1873-4359
• DOI: 10.1016/j.colsurfa.2007.04.142

We herein have investigated the interfacial assembly behavior of a bola-form compound, N(1),N(5)-di(1-naphthyl)pentanediamide, which has two naphthyl head groups connected by a pentanediamide spacer, through the Langmuir and Langmuir–Blodgett (LB) strategy. The Langmuir and LB films of the compound have been characterized by π-A isotherm, atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FT-IR), UV–vis spectra, transmission electron microscope (TEM) and electron diffraction (ED). The results indicated that the compound could hierarchically self-organize to form nanotapes even at the very low surface pressure, which could then be assembled to form locally ordered aligned nanoarrays under a higher surface pressure. It was suggested that the intermolecular π–π interaction and hydrogen-bond were responsible for the formation of such nanotapes, and that the formation of the locally regular arranged nanotape arrays was owing to the so-called “logs-on-a-river” effect.