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Adsorption behavior of DNA molecules to comb copoly mers containing 2-vinyl-4, 6-diamino-1, 3, 5-triazine (VDAT) at air/water interface and their molecular arrangement have investigated by surface pressure-area (π-A) isotherm, IR spectroscopy, pola rized UV-vis spectroscopy, and atomic force microscopy. A newly hydrogenated and fluorinated b inary comb copolymers containing VDAT as adsorption template was synthesized by radical copo lymerization. From the result of π-A isotherm of monolayer on DNA aqueous solution, an increase of v alue for molecular area per VDAT unit corresponds to 20 A 2 . The IR spectrum of transferred LB multilayer ind icates adsorption of DNA molecules by hydrogen bonding to the copolymer templates. AFM images sho w the circular domain at 50-60 nm diameters. Adsorbed DNA molecules showed the absorption band a t 260 nm and emitted fluorescence at 400 nm. From the results of polarized UV-vis spectroscopy, these absorption bands indicate faint polarized dependency. In addition, emission bands in fluores cence spectrum of adsorbed DNA to copolymer film showed red-shift and became sharper than the one of their solution.

Control of Arrangement for DNA Molecules Chemisorbed to the Organized Molecular Films of Comb Copolymers Containing <i>s</i>-Triazine