Schauries, D. ; Mota-Santiago, P. ; Gilbert, E. P. ; Kirby, N. ; Trautmann, C. ; Kluth, P. (2018)
Structure, morphology and annealing behavior of ion tracks in polycarbonate.
In: European Polymer Journal, 108
doi: 10.1016/j.eurpolymj.2018.09.025
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Ion tracks created in polycarbonate foils by irradiation with 2.2 GeV Au ions were characterized using a combination of small-angle x-ray and neutron scattering (SAXS/SANS) and Fourier transform infrared spectroscopy (FTIR). The ion tracks were found to consist of a cylindrical damage core with a radius of ∼2.5 ± 0.2 nm and a relative density approximately 5% below that of the pristine polycarbonate. Upon exposure to thermal annealing between 100 and 200 °C, the tracks were observed to double in size. Simultaneously, this led to a recovery in the density of the ion track, reaching a value just below that of the pristine polymer. A mechanism is proposed that explains this behavior by diffusion of radiolysis products/material flow into the under-dense track core from the surrounding region. Treatment of the tracks with UV radiation has shown no significant change in the track structure and size.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Schauries, D. ; Mota-Santiago, P. ; Gilbert, E. P. ; Kirby, N. ; Trautmann, C. ; Kluth, P. |
| Art des Eintrags: | Bibliographie |
| Titel: | Structure, morphology and annealing behavior of ion tracks in polycarbonate |
| Sprache: | Englisch |
| Publikationsjahr: | November 2018 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | European Polymer Journal |
| Jahrgang/Volume einer Zeitschrift: | 108 |
| DOI: | 10.1016/j.eurpolymj.2018.09.025 |
| Kurzbeschreibung (Abstract): | Ion tracks created in polycarbonate foils by irradiation with 2.2 GeV Au ions were characterized using a combination of small-angle x-ray and neutron scattering (SAXS/SANS) and Fourier transform infrared spectroscopy (FTIR). The ion tracks were found to consist of a cylindrical damage core with a radius of ∼2.5 ± 0.2 nm and a relative density approximately 5% below that of the pristine polycarbonate. Upon exposure to thermal annealing between 100 and 200 °C, the tracks were observed to double in size. Simultaneously, this led to a recovery in the density of the ion track, reaching a value just below that of the pristine polymer. A mechanism is proposed that explains this behavior by diffusion of radiolysis products/material flow into the under-dense track core from the surrounding region. Treatment of the tracks with UV radiation has shown no significant change in the track structure and size. |
| Freie Schlagworte: | polycarbonate, ion track, ion irradiation, small angle scattering |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Ionenstrahlmodifizierte Materialien |
| Hinterlegungsdatum: | 07 Mär 2024 07:40 |
| Letzte Änderung: | 07 Mär 2024 07:40 |
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