A new chiral poly(aryl ether ketone)(PAEK) containing 1,1′-bi-2-naphthyl moiety was synthesized. The chiral PAEK was characterized by IR, 1H NMR, GPC and DSC. The chiral behavior of the chiral PAEK was investigated by vibrational circular dichroism(VCD) preliminaryly, and we found it possesses the chiral feature. It would be attempted to be chiral stationary phase to realize chiral separation.
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.
Morphology of polyaniline was tunable during in situ oxidative polymerization of the monomer aniline simply by changing pH values within the alkaline region,which could be regulated from tubular to spherical shapes with pH being increased.UV-Vis and FTIR spectra were used to characterize the molecular structures of the assembled samples,which was responsible for the lower electrical conductivity.
