Solid-state structure of fluorinated comb copolymer and molecular orientation of its organized molecular film

抄録

Molecular orientation and surface morphology of monolayers related to solid-state structure for methacrylate comb copolymers having fluorocarbon and hydrocarbon side-chains were investigated using X-ray diffraction (XRD), differential scanning calorimetry (DSC), and atomic force microscopy (AFM). From the XRD profiles, two kinds of short spacing peaks were confirmed at 5.0 and 4.2 A, which assigned the sub-cells for both side-chains. Further, two kinds of endothermic peaks, which corresponded to melting peaks of the both side-chain crystals, appeared in the thermograms. From the AFM observation of their mono layers, it was found that there were hydrogenated domains at a few hundred nm diameters in their monolayers, whereas corresponding acrylate copolymer monolayers form the phase-separated structure with the domains at 10-30 nm diameters.