Impact of electron irradiation on particle track etching response in polyallyl diglycol carbonate (PADC)

Mishra, Rosaline; Tripathy, S.P.; Shrestha, A Kul; Srivastava, Alok; Ghosh, S.; Dwivedi, K.K.; Khathing, D. T.; Müller, M.; Fink, D.

doi:10.1007/s12043-000-0123-0

Cited by 13 publications

(2 citation statements)

References 14 publications

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“…Etching needs energetic beams. Electron beams of 10 keV and up are currently used for polymer etching;45–47 this is 2 orders of magnitude larger than the energies used for this article.…”

Section: Resultsmentioning

confidence: 98%

Chemical modification of polystyrene by low‐energy (<100 eV) electron irradiation studied by mass spectrometry

Massey

Cloutier

Bazin

et al. 2008

J of Applied Polymer Sci

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Dip-coated thin films of polystyrene were chemically modified (degraded) by low-energy electron irradiation (0-100 eV). The resulting degradation was studied by mass spectrometry with variable electron energy. In the negative-ion mode, H 2 was observed and was associated with two phenomena. The resonant structure at 9.1 6 0.4 eV was associated with dissociative electron attachment. The energy of the resonance peak agreed with the results obtained for organic molecules. At a higher energy, a monotonic rise of the emission yield was observed and was associated with nonresonant dipolar dissociation. More mass fragments were observed in the positive-ion mode. The predominant ion was H 1 at 100 eV of electron irradiation, and alkyl ions were detected at higher masses. Emission thresholds were measured for the most predominant positive ions. The shape of the emission curve showed that there was no resonant process in the formation of these ions. The energy threshold was measured at about 20 eV, and this meant that the carbon structure of the polymer broke with a recombination of the degradation products with hydrogen atoms before the emission occurred. Below 19 eV, there was only hydrogen loss; this implied that the possible degradation mechanisms did not break the general carbon structure of the material, leading to crosslinking.

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“…Etching needs energetic beams. Electron beams of 10 keV and up are currently used for polymer etching;45–47 this is 2 orders of magnitude larger than the energies used for this article.…”

Section: Resultsmentioning

confidence: 98%

Chemical modification of polystyrene by low‐energy (<100 eV) electron irradiation studied by mass spectrometry

Massey

Cloutier

Bazin

et al. 2008

J of Applied Polymer Sci

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“…Although they accelerate the etching process, polymers like PMMA are generally etched with an acidic medium leading to very low etch track ratios @1-10. In a recent study on the polymer polyallyl diglycol carbonate (PADC) [9] it was found that etch-rate values of the PADC increase nearly fourfold if the polymer is irradiated with 100 Mrad dose of electrons at 2 MeV prior to the heavy ion irradiation. The etch tracks were created by 140 MeV Si ions.…”

Section: Type Of Membranementioning

confidence: 99%

Nanolithography and Nanomanipulation

Raychaudhuri

2004

The Chemistry of Nanomaterials

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Role of structural modification on the electrical properties of poly(ethylene terephthalate) irradiated with 90‐MeV carbon ion beam

Srivastava

Singh

Kulriya

et al. 2008

Polymer Engineering & Sci

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Thin films of poly(ethylene terephthalate) (PET) having a thickness of 100 lm were exposed to different ion fluence of swift heavy ions of carbon in the range of 5 3 10 11 -5 3 10 13 ions/cm 2 . The effect of ion beam on structural and electrical modification has been studied by UV/vis, FTIR, X-ray diffraction (XRD), Differential Scanning Calorimetery (DSC), and AC electrical measurement techniques. On irradiation, a shift in absorption wavelength toward the red end of spectrum with increase of ion fluence was observed. The intensity of crystalline IR bands and main diffraction peak in XRD pattern were found to decrease with increase in ion fluence. It indicates the loss of crystallinity induced by ion-beam irradiation. The crystallite size was found to increase on irradiation. The melting temperature (T m ) of PET films increased at a low ion dose (5.0 3 10 12 ions/cm 2 ), while it decreased at higher ion fluence (50.0 3 10 12 ions/cm 2 ). The dielectric constant (e 0 ) of PET films was increased with increase of ion fluence. The modifications brought about in the dielectric constant are correlated with chemical and molecular structural changes occurring on irradiation. POLYM.

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Impact of electron irradiation on particle track etching response in polyallyl diglycol carbonate (PADC)

Cited by 13 publications

References 14 publications

Chemical modification of polystyrene by low‐energy (<100 eV) electron irradiation studied by mass spectrometry

Chemical modification of polystyrene by low‐energy (<100 eV) electron irradiation studied by mass spectrometry

Nanolithography and Nanomanipulation

Role of structural modification on the electrical properties of poly(ethylene terephthalate) irradiated with 90‐MeV carbon ion beam

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