Effect of neutron dose on the structural properties of Makrofol polycarbonate

Nouh, S. A.; Amer, Hamada H.; Remon, S.W.

doi:10.1016/j.nimb.2009.02.049

Cited by 20 publications

(9 citation statements)

References 19 publications

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“…Youmei et al [52] obtained similar trend for M-KG PC irradiated with 15.14 MeV/amu Xe 136 and 11.4 MeV/amu U 238 ions. The decrease in intensity is attributed to the cleavage of the carbonate linkage and to the -H abstraction from the backbone of the polymer, associated with the formation of CO 2 and -OH with varied intensities [11]. Similar trends also have been observed for nitrogen ion implanted CR-39 polymer films [58].…”

Section: Ftir Spectroscopysupporting

confidence: 68%

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High electronic excitation induced modifications by 100MeV O7+ and 150MeV Ni11+ ions in Makrofol KG polycarbonate film

Kumar

Sonkawade

Dhaliwal

2012

Nuclear Instruments and Methods in Physics Research Section B:

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Section: Ftir Spectroscopysupporting

confidence: 68%

“…Generally, ions irradiation causes chain scissions [5], creation of unsaturated bonds [6], bond breaking, carbonization [7], crosslinking [8][9][10][11], etc. Such effects are accountable for the alterations in structural, optical, electrical, and mechanical properties of the implanted/irradiated polymeric materials [7,12,13].…”

Section: Introductionmentioning

confidence: 99%

High electronic excitation induced modifications by 100MeV O7+ and 150MeV Ni11+ ions in Makrofol KG polycarbonate film

Kumar

Sonkawade

Dhaliwal

2012

Nuclear Instruments and Methods in Physics Research Section B:

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“…This indicates that a degradation process prevails at higher doses. Also, this degradation caused ordering in the irradiated samples to some degree, thus formation of hydroxyl group leads to water formation (Nouh et al, 2009;Sahoo et al, 2014;. Similar is the case of neutron irradiation, but there is more modification as compared to gamma irradiation for the corresponding band.…”

Section: Interpretation Of Ftir Spectra For Neutron and Gamma Irradiamentioning

confidence: 81%

Correspondence and difference between gamma-ray and neutron irradiation effects on organic materials in marine environment

Elmaghraby¹,

Abdelaal²,

Abdelhady³

et al. 2019

Egypt. J. of Aquatic Biolo. and Fish.

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This work is devoted to understand the difference between gamma ray effects and neutron influence on organic materials in order to interpret the change occurred in organic matter that coexists with nuclear tests in deep marine environment. A combination of Fourier-transform infrared spectroscopy (FTIR) and a simple statistical analysis was applied as a tool for the quantitative determination of changes in chemical properties due to radiation effects. The primary goal of this work was to statistically deduce, from correlations obtained between different band intensities, more information on the changes occurred. It did not aim only to investigate in detail the PolyAllyl Diglycol Carbonate (PADC) structure due to gamma and neutron irradiation impacts. The PADC samples obtained from Track Analysis System Ltd., UK of TASTRAK type were irradiated with gamma-ray dose in the range from (5±1)×10 3 Gy to (3.0±0.6)×10 6 Gy using 60 Co standard gamma cell of calibrated dose rate. While a high neutron fluence from ETRR-2 research reactor was applied for neutron irradiation process. The results showed a shift in absorption intensities for various bands due to either gamma or neutron irradiation. Such bands are the C=O, C=C and CO -C. Moreover, formation of-OH radical was observed which indicating water content in the studied samples after irradiation. Such induced alterations were due to bond breakage of weak bonds such as, C-H, CO , and CC with different possibilities for gamma irradiation effects. While for neutron irradiation, atomic displacement in the material was the main reason for such changes. Furthermore, by applying a simple statistical analysis test, major infrared bands were integrated in order to make sense of, and draw correlations between each other to get more accurate and comparable results. The obtained results showed a good correlation between some bands, while the other didn't. Also, the applied correlations simplified the comparison between gamma ray and neutron induced effects.

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“…The modifications induced in polycarbonate due to irradiation have been studied extensively in the past (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16). Lasers are widely used to modify the surface properties of polymers (17).…”

Section: Introductionmentioning

confidence: 99%

Effect of infrared pulsated laser on the dielectric properties of polycarbonate

Nouh

Bahammam

2010

Radiation Effects and Defects in Solids

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Makrofol-De polycarbonate is a class of polymeric solid state nuclear track detector which has many applications in various industrial fields. A study of the modification possibility of the dielectric properties of a Makrofol polymer using laser irradiation has been carried out. In the present work, Makrofol samples were irradiated using different fluences between 0.47 and 10.4 J/cm 2 of 5 W infrared laser. The modifications in the laser irradiated Makrofol samples have been studied as a function of fluence using dielectric constant ε , dielectric loss ε , and AC conductivity σ AC measurements. The frequency dependencies (100 Hz-5 MHz) of ε , ε and σ AC at 35 • C were investigated. The dielectric constant ε , dielectric loss ε and AC conductivity σ AC were also found to increase on heating up to 100 • C. The results indicate that ε , ε and σ AC depend not only on the frequency and temperature but also on the laser fluence.

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Effect of neutron dose on the structural properties of Makrofol polycarbonate

Cited by 20 publications

References 19 publications

High electronic excitation induced modifications by 100MeV O7+ and 150MeV Ni11+ ions in Makrofol KG polycarbonate film

High electronic excitation induced modifications by 100MeV O7+ and 150MeV Ni11+ ions in Makrofol KG polycarbonate film

Correspondence and difference between gamma-ray and neutron irradiation effects on organic materials in marine environment

Effect of infrared pulsated laser on the dielectric properties of polycarbonate

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