Molecular lattice resolution of single faceted crystals of a thermotropic liquid crystalline poly(aryl ether ketone) using atomic force microscopy

Communication: The surfaces of single faceted crystals of a thermotropic liquid crystalline poly(aryl ether ketone) copolymer containing chloro-side group are investigated by atomic force microscope. The molecular lattice resolution images of the single faceted crystals indicate that the surfaces of the crystals consist of molecular chain ends of the copolymer, and the crystals exhibit orthorhombic packing with the unit cell dimensions of a = 0.787 ± 0.020 nm and b = 0.625 ± 0.010 nm, respectively. The data are further confirmed by electron diffraction results.