An α-terthiophene/cellulose triacetate film system exposed to γ-rays and electron beam shows two new bands in the visible region of the spectrum. The absorbance at 490 nm is almost stable for a long time and responds linearly to the dose applied up to 400 kGy. A second band developed at 700 nm depends on dose rate and may indicate a chain-growth. The main species responsible for the color change and EPR signal is likely to be an enlarged oligomer radical cation stabilized by a semiquinoid structure.

Emmi, S.S., Ceroni, P., Lavalle, M., Fuochi, P.G., D'Angelantonio, M., Alberti, A., et al. (2000). Radiochromic properties of (α)-terthiophene-cellulose triacetate films. RADIATION PHYSICS AND CHEMISTRY, 57(3-6), 707-710 [10.1016/S0969-806X(99)00437-5].

Radiochromic properties of (α)-terthiophene-cellulose triacetate films

Ceroni P.;Alberti A.;Kovacs A.;
2000

Abstract

An α-terthiophene/cellulose triacetate film system exposed to γ-rays and electron beam shows two new bands in the visible region of the spectrum. The absorbance at 490 nm is almost stable for a long time and responds linearly to the dose applied up to 400 kGy. A second band developed at 700 nm depends on dose rate and may indicate a chain-growth. The main species responsible for the color change and EPR signal is likely to be an enlarged oligomer radical cation stabilized by a semiquinoid structure.
2000
Emmi, S.S., Ceroni, P., Lavalle, M., Fuochi, P.G., D'Angelantonio, M., Alberti, A., et al. (2000). Radiochromic properties of (α)-terthiophene-cellulose triacetate films. RADIATION PHYSICS AND CHEMISTRY, 57(3-6), 707-710 [10.1016/S0969-806X(99)00437-5].
Emmi, S. S.; Ceroni, P.; Lavalle, M.; Fuochi, P. G.; D'Angelantonio, M.; Alberti, A.; Macciantelli, D.; Kovacs, A.; Takacs, E.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/1012535
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