A. Reisman, M. Berkenblit, et al.
JES
Fluorescence redistribution after pattern photobleaching has been used to measure the translational diffusion of a small probe molecule in a glassy polymer film. A new method has been developed employing a pattern mask with submicron dimensions to allow very slow diffusion (D ≈ 10−13 cm2/s) to be measured on a convenient time scale. The diffusion coefficient of a fluorescent dye, 7-(diethylamino)-4-nitrobenz-2-oxa-1,3-diazole, in a 1-µm-thick film of poly(methyl methacrylate) containing approximately 18% residual solvent (chlorobenzene) was found to be D = 1.6 × 10−13 cm2/s at 25 °C. © 1982, American Chemical Society. All rights reserved.
A. Reisman, M. Berkenblit, et al.
JES
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
Elizabeth A. Sholler, Frederick M. Meyer, et al.
SPIE AeroSense 1997
John G. Long, Peter C. Searson, et al.
JES