Tian Ying, He Qiang, Tao Cheng, Li Junbai
International Joint Lab, Key Lab of Colloid and Interface Science, The Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
Langmuir. 2006 Jan 3;22(1):360-2. doi: 10.1021/la0524768.
A pressure-filter-template approach was employed to prepare fluorescent nanotubes of polyethyleneimine (PEI) and 3,4,9,10-perylenetetracarboxylicdianhydride (PTCDA) through covalent combination in the porous of alumina template based on the layer-by-layer (LbL) assembly technique. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images exhibited a tubular structure of the obtained samples. The wall thickness of the nanotubes is well controlled by varying the assembled cycle number, which is detected by UV-visible spectroscopy. Fourier transform infrared (FT-IR) spectroscopy confirmed the formation of covalent bonds between PEI and PTCDA in nanotubes.
采用压力过滤模板法，基于层层（LbL）组装技术，通过在氧化铝模板的孔隙中进行共价结合，制备了聚乙烯亚胺（PEI）和3,4,9,10-苝四羧酸二酐（PTCDA）的荧光纳米管。扫描电子显微镜（SEM）和透射电子显微镜（TEM）图像显示了所得样品的管状结构。通过改变组装循环次数可以很好地控制纳米管的壁厚，这通过紫外-可见光谱进行检测。傅里叶变换红外（FT-IR）光谱证实了纳米管中PEI和PTCDA之间形成了共价键。
