Structure, morphology and annealing behavior of ion tracks in polycarbonate
(2018) In European Polymer Journal 108. p.406-411- 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... (More)
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.
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- author
- Schauries, D. ; Mota-Santiago, P. LU ; Gilbert, E. P. ; Kirby, N. ; Trautmann, C. and Kluth, P.
- publishing date
- 2018-11
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Ion irradiation, Ion track, Polycarbonate, Small angle scattering
- in
- European Polymer Journal
- volume
- 108
- pages
- 6 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85053800488
- ISSN
- 0014-3057
- DOI
- 10.1016/j.eurpolymj.2018.09.025
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2018
- id
- 285901f0-40f2-46a1-94f0-30b63c83638d
- date added to LUP
- 2023-04-05 16:22:39
- date last changed
- 2023-05-26 15:28:28
@article{285901f0-40f2-46a1-94f0-30b63c83638d,
abstract = {{<p>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.</p>}},
author = {{Schauries, D. and Mota-Santiago, P. and Gilbert, E. P. and Kirby, N. and Trautmann, C. and Kluth, P.}},
issn = {{0014-3057}},
keywords = {{Ion irradiation; Ion track; Polycarbonate; Small angle scattering}},
language = {{eng}},
pages = {{406--411}},
publisher = {{Elsevier}},
series = {{European Polymer Journal}},
title = {{Structure, morphology and annealing behavior of ion tracks in polycarbonate}},
url = {{http://dx.doi.org/10.1016/j.eurpolymj.2018.09.025}},
doi = {{10.1016/j.eurpolymj.2018.09.025}},
volume = {{108}},
year = {{2018}},
}