Infrared analysis of ion beam irradiated polymers

Delgado, Adriana de Oliveira; Rizzutto, M. A.; Tabacniks, M.H.; Added, N.; Fink, D.

doi:10.1016/j.nimb.2009.01.078

Cited by 12 publications

(7 citation statements)

References 14 publications

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“…Data on the absorption bands as a function of the fluence indicated a higher probability for simple-bonds scissioning than for double bonds and no dependence on the number of double bonds breaking with ion fluence [617]. Moreover, Makrofol of approximate thickness, were irradiated with 50 MeV Li ion (+3 charge state), builtin modifications due to irradiation were studied.…”

Section: Polymer Surfacesmentioning

confidence: 99%

Ion beam induced surface and interface engineering

Jain

Agarwal

2011

Surface Science Reports

255

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Section: Polymer Surfacesmentioning

confidence: 99%

Ion beam induced surface and interface engineering

Jain

Agarwal

2011

Surface Science Reports

255

View full text Add to dashboard Cite

“…X‐ray diffraction patterns of pristine and O 7+ ions irradiated samples of MF‐KG and MF‐N polycarbonate polymers are shown in Figure (a and b) respectively. The diffraction peak for the pristine samples of MF‐KG polycarbonate occurred at 17.6° . The position of this peak shifted to 17.26° (Table ) for the irradiated samples.…”

Section: Resultsmentioning

confidence: 95%

A Comparative Study of the Effects of Oxygen Ions Upon the Free Volume and Physico‐Chemical Properties of Makrofol (KG & N) Polycarbonate

Gupta

Singh

Awasthi

et al. 2015

Macromolecular Symposia

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Summary: Makrofol (KG & N) polymers are the important class of polycarbonates which are used as solid state nuclear track detectors. The effect of 100 MeV oxygen ions (O 7þ ) on the free volume and physico-chemical properties of Makrofol (KG & N) polymers were studied. The pristine and irradiated samples were characterized by positron annihilation lifetime spectroscopy, X-ray diffraction, UV-visible and FTIR. A comparative study of free volume was carried out from the obtained values of the pristine and irradiated samples of both the polymers. The absorption edges of UV-visible were found to be shifted towards longer wavelength region. The intensities of the various absorption bands of the infrared spectra were found to be modified; which indicated the changes in the chemical properties of the exposed samples.

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“…By the analyses of FTIR spectra, the absorption bands for makrofol-KG corresponding to following groups are identified: CH (765, 1408, 2865-2968 cm −1 ), The typical errors in the quantities are ±2%. 12,22 Similarly for makrofol-N, the absorption bands corresponding to the same groups as in makrofol-KG are identified but with a slight difference in wave numbers. The position of the bands for the irradiated samples is same as that of pristine sample for both polymers, but the intensity of the bands is decreased in the irradiated samples of makrofol-KG polymer at all doses; whereas for makrofol-N polymer samples, the intensity of band decreased at doses 250 and 750 kGy and showed no change at doses of 500 and 1000 kGy as compared with the pristine.…”

Section: Ftir Studiesmentioning

confidence: 82%

Gamma Radiation Induced Modifications on Physicochemical Properties of Makrofol (KG and N) Polycarbonate

et al. 2015

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Makrofol (KG and N) polycarbonates (PCs) are the most versatile solid-state nuclear track detectors. These polymers were exposed to gamma radiation of doses ranging from 250 to 1000 kGy. The pristine and exposed samples were characterized by X-ray diffraction (XRD), UV-vis spectrophotometry, and Fourier transform infrared spectrophotometry for the structural, optical, and chemical studies, respectively. The XRD studies showed that crystallite size for exposed samples of makrofol-KG PC decreased from 64.7 to 57.9Å and for makrofol-N PC it increased from 19.1 to 21.1Å. The band gap energy decreased from 4.40 to 4.07 eV for makrofol-KG and from 4.26 to 3.83 eV for makrofol-N after the gamma exposure. The number of carbon atoms per conjugation length as obtained from UV-vis studies was increased in both cases. The activation energy showed fluctuations for exposed samples of both polymers. The intensity of various absorption bands of the infrared spectra decreased at some doses for both the PCs, indicating the change in the chemical properties of the exposed samples. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2015, 34, 21510; View this article online at wileyonlinelibrary.com.

show abstract

Infrared analysis of ion beam irradiated polymers

Cited by 12 publications

References 14 publications

Ion beam induced surface and interface engineering

Ion beam induced surface and interface engineering

A Comparative Study of the Effects of Oxygen Ions Upon the Free Volume and Physico‐Chemical Properties of Makrofol (KG & N) Polycarbonate

Gamma Radiation Induced Modifications on Physicochemical Properties of Makrofol (KG and N) Polycarbonate

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