W. Volksen, P.M. Cotts, et al.
Journal of Polymer Science, Part B: Polymer Physics
Previously, it has been shown that three types of C clusters, characterized by mass range and relative intensities, are produced upon laser ablation of polyimide. The low mass clusters, Cn 9 < n < 25, always appear coincident with peaks 2 amu greater than the bare C cluster. Using perdeuterated polyimide, we have established the elemental composition of these peaks to be predominately, CnH2, rather than Cn-1N, which is allowed since polyimide contains 5 at% N. These results establish the positive ion spectrum of polyimide to be composed of C and H with little contribution from heteroatoms, and show that low mass C clusters preferentially add 2 H atoms in the high energy, multi-element plasma induced by the laser. © 1989.
W. Volksen, P.M. Cotts, et al.
Journal of Polymer Science, Part B: Polymer Physics
D.Y. Yoon, M. Ree, et al.
International Conference on Polyimides 1988
M.H. Davey, V.Y. Lee, et al.
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry
M. Ree, D.Y. Yoon, et al.
ACS PMSE 1988