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Near Edge X-Ray Absorption Fine Structure Characterization of Polymers Based on 2-Vinyl-4,5-Dieyanoimidazole



A L. Marsh, D J. Burnett, Daniel A. Fischer, P G. Rasmussen, J L. Gland


Polymer thin films are used for a variety of applications ranging from microelectronics to coatings. New polymers, designed with specific applications in mind are currently being developed. Polyvinazene, a poly(imidazole) based on the monomer 2-vinyl-4,5-dicyaniomidazole (vinazene), is a thermally stable material that is acidic with a pKa of 5.5-.1-3 It is soluble in aqueous base and is also soluble in very polar organic solvents, so it can be easily processed into thin films. Applications for this new material range from high-temperature coatings to catalytic supports. For these applications, it is critical that surface properties be well-understood. Near Edge X-Ray Absorption Fine Structure, or NEXAFS, is an element-specific spectroscopic technique that provides information on the structure and bonding of functional groups present at the surface of polymer films.4-8 In the present work, thin films of polyvinazene and a copolymer with styrene, poly(vinazene-co-styrene), have been characterized using NEXAFS at the C-K-edge and the N-K-edge.
Polymeric Materials: Science & Engineering


NEXAFS, polymers, surface analysis, thin films


Marsh, A. , Burnett, D. , Fischer, D. , Rasmussen, P. and Gland, J. (2001), Near Edge X-Ray Absorption Fine Structure Characterization of Polymers Based on 2-Vinyl-4,5-Dieyanoimidazole, Polymeric Materials: Science & Engineering (Accessed April 14, 2024)
Created December 31, 2000, Updated October 12, 2021