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首页> 外文期刊>Nanotechnology >Covalently attached multilayer self-assemblies of single-walled carbon nanotubols and diazoresins
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Covalently attached multilayer self-assemblies of single-walled carbon nanotubols and diazoresins

机译：单壁碳纳米管和重氮树脂的共价结合多层自组装体

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摘要

Layer-by-layer (LBL) multilayer films have been constructed from multiple hydroxyl group directly modified single- walled carbon nanotubes (single-walled carbon nanotubols, SWNTols) and light- sensitive diazoresin (DR). Ultraviolet-visible (UV-vis) absorbance spectra confirm that the alternate assemblies of SWNTols and DR result in uniform film growth. Fourier transformed infrared (FT-IR) spectra of the films show that the main driving force for DR/ SWNTol assembly is attributed to hydrogen bond attractions rather than electrostatic interactions. Upon UV irradiation, the hydrogen bonds of the multilayer films transform into covalent bonds, which significantly improves the stability of the DR/SWNTol multilayer films towards etching by polar solvent. Atomic force and scanning electron microscopies (AFM and SEM) indicate high structural homogeneity of the assembled composite films.
机译：已经由多个羟基直接改性的单壁碳纳米管（单壁碳纳米管，SWNTol）和光敏重氮树脂（DR）构成了逐层（LBL）多层膜。紫外-可见（UV-vis）吸收光谱证实SWNTols和DR的交替组装导致均匀的膜生长。薄膜的傅立叶变换红外光谱（FT-IR）表明，DR / SWNTol组装的主要驱动力归因于氢键吸引而不是静电相互作用。在紫外线照射下，多层膜的氢键转变为共价键，从而显着提高了DR / SWNTol多层膜对极性溶剂蚀刻的稳定性。原子力和扫描电子显微镜（AFM和SEM）表明组装的复合膜具有很高的结构均匀性。

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