Chemical degradation of polyimide and polysulfone films under the irradiation with heavy ions of several hundred meV

Steckenreiter, Thomas; Balanzat, E.; Fueß, H.; Trautmann, C.

doi:10.1002/(sici)1099-0518(19991201)37:23<4318::aid-pola8>3.0.co;2-7

Cited by 37 publications

(18 citation statements)

References 37 publications

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“…The radial extension of the tracks matches, within experimental uncertainties, TEM-derived radii of tracks in polyimide created by GeV Pb and Au ions (Eyal & Gassan, 1999), and the primary etching radius of tracks in polyimide created by GeV U ions (Abu Saleh & Eyal, 2003a). This interpretation is qualitatively supported by previous mass spectrometry and infrared spectroscopy analyses of released species that were carried out during in vacuo irradiations of samples of the two polymers (Steckenreiter et al, 1999a(Steckenreiter et al, , 1999bDehaye et al, 2004). This interpretation is qualitatively supported by previous mass spectrometry and infrared spectroscopy analyses of released species that were carried out during in vacuo irradiations of samples of the two polymers (Steckenreiter et al, 1999a(Steckenreiter et al, , 1999bDehaye et al, 2004).…”

Section: Discussionsupporting

confidence: 77%

Structure model and small-angle scattering cross sections of latent ion tracks in dielectric solids

Eyal

Saleh

2007

J Appl Cryst

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Knowledge of the morphology of ion damage trails, `latent ion tracks', typically a few nanometres wide and 10–125 µm long, created along wakes of swift heavy ions in dielectric solids, is a prerequisite for advancement of track applications in nanotechnology. Modeling the tracks as depleted columnar structures with soft to hard boundaries and cylindrical symmetry, the derivation of theoretical track small‐angle X‐ray scattering cross sections is reported. These quantities enable the determination of track structure parameters, specifically the track electron density function and its radial dispersion, from empirical scattering intensities. The derived expressions can be readily adopted for analysis of small‐angle neutron scattering data.

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Section: Discussionsupporting

confidence: 77%

Structure model and small-angle scattering cross sections of latent ion tracks in dielectric solids

Eyal

Saleh

2007

J Appl Cryst

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“…So far only one of these peaks was mentioned in literature, presumably due to their low intensities. 13 This in situ measurement provides a good technique to investigate such small changes in the IR spectrum, due to its high signal to noise ratio obtained by the significant suppression of background effects. Figure 6 shows the residual gas spectra of polyimide.…”

Section: A Infrared Spectroscopymentioning

confidence: 99%

“…It is conclusive that a mixture consisting of C 2 H 4 , CO, and N 2 molecules are the main degradation products which leave the polymer during the irradiation, as known from literature. 13 Figure 7 shows the ion monitoring traces for carbon C (m/z = 12), C 2 H 2 (m/z = 26), and C 2 H 4 /CO/N 2 (m/z = 28). Before the irradiation starts the partial pressure FIG.…”

Section: A Infrared Spectroscopymentioning

confidence: 99%

“…11 Fourier transform infrared (FT-IR) spectroscopy and residual gas analysis (RGA) are common tools to investigate irradiation-induced modifications in polymers. 12,13 In ex situ experiments the material under examination needs to be irradiated and transferred to the lab for final characterization, with one sample for each irradiation parameter set. In situ investigations have great advantages compared to common ex situ investigations.…”

Section: Introductionmentioning

confidence: 99%

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An apparatus for in situ spectroscopy of radiation damage of polymers by bombardment with high-energy heavy ions

Baake

Seidl

Hossain

et al. 2011

Review of Scientific Instruments

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High resolution far-infrared Fourier transform spectroscopy of radicals at the AILES beamline of SOLEIL synchrotron facility Rev. Sci. Instrum. 82, 113106 (2011) Tunable excitation source for coherent Raman spectroscopy based on a single fiber laser Appl. Phys. Lett. 99, 181112 (2011) Characterization of near-terahertz complementary metal-oxide semiconductor circuits using a Fourier-transform interferometer Rev. Sci. Instrum. 82, 103106 (2011) A new target station providing Fourier transform infrared (FT-IR) spectroscopy and residual gas analysis (RGA) for in situ observation of ion-induced changes in polymers has been installed at the GSI Helmholtz Centre for Heavy Ion Research. The installations as well as first in situ measurements at room temperature are presented here. A foil of polyimide Kapton HN R was irradiated with 1.1 GeV Au ions. During irradiation several in situ FT-IR spectra were recorded. Simultaneously outgassing degradation products were detected with the RGA. In the IR spectra nearly all bands decrease due to the degradation of the molecular structure. In the region from 3000 to 2700 cm −1 vibration bands of saturated hydrocarbons not reported in literature so far became visible. The outgassing experiments show a mixture of C 2 H 4 , CO, and N 2 as the main outgassing components of polyimide. The ability to combine both analytical methods and the opportunity to measure a whole fluence series within a single experiment show the efficiency of the new setup.

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“…In this article we describe the results of a systematic study of individual ion tracks in poly(ethylene terephthalate) (PET) and polyimide (PI), polymers that are frequently used as ion track membranes. Data are readily available concerning ion‐induced modifications and track‐etching properties,29–37 and in an earlier study, we described the experimental results for irradiated thick polymer foils that were afterward thinned for TEM analysis 38. Now we proceed to the TEM imaging of samples first cut into very thin sections with ultamicrotomy and then exposed to the ion beam.…”

Section: Introductionmentioning

confidence: 99%

Properties of silica‐filled styrene‐butadiene rubber compounds containing acrylonitrile‐butadiene rubber: The influence of the acrylonitrile‐butadiene rubber type

Choi

2002

J of Applied Polymer Sci

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ABSTRACT:Because silica has strong filler-filler interactions and adsorbs polar materials, a silica-filled rubber compound exhibits poor dispersion of the filler and poor cure characteristics in comparison with those of a carbon black-filled rubber compound. Acrylonitrile-butadiene rubber (NBR) improves filler dispersion in silica-filled styrene-butadiene rubber (SBR) compounds. The influence of the NBR type on the properties of silica-filled SBR compounds containing NBR was studied with NBRs of various acrylonitrile contents. The composition of the bound rubber was different from that of the compounded rubber. The NBR content of the bound rubber was higher than that of the compounded rubber; this became clearer for NBR with a higher acrylonitrile content. The Mooney scorch time and cure rate became faster as the acrylonitrile content in NBR increased. The modulus increased with an increase in the acrylonitrile content of NBR because the crosslink density increased. The experimental results could be explained by interactions of the nitrile group of NBR with silica. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 385-393, 2002

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Chemical degradation of polyimide and polysulfone films under the irradiation with heavy ions of several hundred meV

Cited by 37 publications

References 37 publications

Structure model and small-angle scattering cross sections of latent ion tracks in dielectric solids

Structure model and small-angle scattering cross sections of latent ion tracks in dielectric solids

An apparatus for in situ spectroscopy of radiation damage of polymers by bombardment with high-energy heavy ions

Properties of silica‐filled styrene‐butadiene rubber compounds containing acrylonitrile‐butadiene rubber: The influence of the acrylonitrile‐butadiene rubber type

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