The spreading behavior of new type of chiral and achiral rigid cyclic oligomer on the water surface was investigated by measuring the surface pressure(π) area( A ) isotherms, with the aim of comparison of new type LB...The spreading behavior of new type of chiral and achiral rigid cyclic oligomer on the water surface was investigated by measuring the surface pressure(π) area( A ) isotherms, with the aim of comparison of new type LB films of chiral and achiral rigid cyclic oligomers. Molecular resolution atomic force microscope images of the Langmuir Blodgett(LB) film was observed and the structure of their two dimensional crystals on the basal plane of mica was studied.展开更多
In this article, we report analysis results of a series of aromatic nucleus oligomer by using matrix-assisted laser desorption ionization-time-of-flight mass spectrometry. The results show the aromatic nucleus oligome...In this article, we report analysis results of a series of aromatic nucleus oligomer by using matrix-assisted laser desorption ionization-time-of-flight mass spectrometry. The results show the aromatic nucleus oligomers have different degrees of polymerization. In addition, we obtain satisfied results for confirming structures of the oligomers by this method.展开更多
文摘The spreading behavior of new type of chiral and achiral rigid cyclic oligomer on the water surface was investigated by measuring the surface pressure(π) area( A ) isotherms, with the aim of comparison of new type LB films of chiral and achiral rigid cyclic oligomers. Molecular resolution atomic force microscope images of the Langmuir Blodgett(LB) film was observed and the structure of their two dimensional crystals on the basal plane of mica was studied.
文摘In this article, we report analysis results of a series of aromatic nucleus oligomer by using matrix-assisted laser desorption ionization-time-of-flight mass spectrometry. The results show the aromatic nucleus oligomers have different degrees of polymerization. In addition, we obtain satisfied results for confirming structures of the oligomers by this method.