Structures in the Solid-state and in the Organized Molecular Films of Comb Copolymers Containing s-Triazine Ring

抄録

Structures in the solid state and in the organized molecular films of comb copolymers containing 2-vinyl-4, 6-diamino-s-triazine (VDAT) were investigated using X-ray diffraction (XRD), differential scanning calorimetry (DSC) and surface pressure-area (-A) isotherm measurements. The comb copolymers used in this study were synthesized by co-polymerization of fluorinated or hydrogenated long-chain vinyl compounds and VDAT with AIBN initiator in acetone solution. From the results of XRD and DSC, these copolymers formed side-chain crystals in the bulk states. Fluorinated comb copolymers had a short spacing of 5.0 A for the two-dimensional side-chain lattice whereas hydrogenated polymers formed sub-cell structure at a lattice spacing of 4.2 A. These comb copolymers formed stable condensed monolayers on the water surface estimated by -A isotherms. The molecular arrangement of Langmuir-Blodgett film of comb copolymers corresponded well to that of bulk state from the results of in-plane XRD measurements.