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Pregled bibliografske jedinice broj: 667164

Influence of high doses γ-irradiation on oxygen permeability of linear low-density polyethylene and cast polypropylene films

Klepac, Damir; Ščetar, Mario; Baranović, Goran; Galić, Kata; Valić, Srećko
Influence of high doses γ-irradiation on oxygen permeability of linear low-density polyethylene and cast polypropylene films // Radiation physics and chemistry (1993), 97 (2014), 304-312 doi:10.1016/j.radphyschem.2013.12.005 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 667164 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Influence of high doses γ-irradiation on oxygen permeability of linear low-density polyethylene and cast polypropylene films

Autori
Klepac, Damir ; Ščetar, Mario ; Baranović, Goran ; Galić, Kata ; Valić, Srećko

Izvornik
Radiation physics and chemistry (1993) (0969-806X) 97 (2014); 304-312

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
polyethylene; polypropylene; gamma-irradiation; oxygen permeability; ESR; FTIR

Sažetak
Linear low density polyethylene (PE-LLD) and cast polypropylene (PPcast) films were irradiated by γ- irradiation. The total irradiation dose varied from 0 kGy (unirradiated samples) to 200 kGy. Oxygen transport was investigated by a manometric method and the structural changes were studied by differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FTIR). Free radicals decay as a function of time was monitored by electron spin resonance (ESR) spectroscopy. The results show that the γ- irradiation reduces oxygen permeability coefficient in both films. The reduction was associated with an increase in crystallinity. DSC thermograms revealed a decrease in PPcast melting point with increasing irradiation dose, indicating higher degradation compared to PE-LLD. The observed peak in FTIR spectra for both samples at 1716 cm−1 corresponds to the stretching of the carbonyl and carboxylic groups which arise from the reaction of oxygen with the free radicals produced in the polymer matrix as a result of irradiation.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Prehrambena tehnologija



POVEZANOST RADA

Projekti:
058-1252971-2805 - Permeacijska svojstva nekih polimernih materijala za pakiranje hrane (Galić, Kata, MZOS ) ( CroRIS)
062-0000000-3209 - Strukturne i dinamičke promjene u sustavima makromolekula (Valić, Srećko, MZOS ) ( CroRIS)

Ustanove:
Prehrambeno-biotehnološki fakultet, Zagreb,
Medicinski fakultet, Rijeka,
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Kata Galić (autor)

Avatar Url Goran Baranović (autor)

Avatar Url Mario Ščetar (autor)

Avatar Url Damir Klepac (autor)

Avatar Url Srećko Valić (autor)

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com

Citiraj ovu publikaciju:

Klepac, Damir; Ščetar, Mario; Baranović, Goran; Galić, Kata; Valić, Srećko
Influence of high doses γ-irradiation on oxygen permeability of linear low-density polyethylene and cast polypropylene films // Radiation physics and chemistry (1993), 97 (2014), 304-312 doi:10.1016/j.radphyschem.2013.12.005 (međunarodna recenzija, članak, znanstveni)
Klepac, D., Ščetar, M., Baranović, G., Galić, K. & Valić, S. (2014) Influence of high doses γ-irradiation on oxygen permeability of linear low-density polyethylene and cast polypropylene films. Radiation physics and chemistry (1993), 97, 304-312 doi:10.1016/j.radphyschem.2013.12.005.
@article{article, author = {Klepac, Damir and \v{S}\v{c}etar, Mario and Baranovi\'{c}, Goran and Gali\'{c}, Kata and Vali\'{c}, Sre\'{c}ko}, year = {2014}, pages = {304-312}, DOI = {10.1016/j.radphyschem.2013.12.005}, keywords = {polyethylene, polypropylene, gamma-irradiation, oxygen permeability, ESR, FTIR}, journal = {Radiation physics and chemistry (1993)}, doi = {10.1016/j.radphyschem.2013.12.005}, volume = {97}, issn = {0969-806X}, title = {Influence of high doses γ-irradiation on oxygen permeability of linear low-density polyethylene and cast polypropylene films}, keyword = {polyethylene, polypropylene, gamma-irradiation, oxygen permeability, ESR, FTIR} }
@article{article, author = {Klepac, Damir and \v{S}\v{c}etar, Mario and Baranovi\'{c}, Goran and Gali\'{c}, Kata and Vali\'{c}, Sre\'{c}ko}, year = {2014}, pages = {304-312}, DOI = {10.1016/j.radphyschem.2013.12.005}, keywords = {polyethylene, polypropylene, gamma-irradiation, oxygen permeability, ESR, FTIR}, journal = {Radiation physics and chemistry (1993)}, doi = {10.1016/j.radphyschem.2013.12.005}, volume = {97}, issn = {0969-806X}, title = {Influence of high doses γ-irradiation on oxygen permeability of linear low-density polyethylene and cast polypropylene films}, keyword = {polyethylene, polypropylene, gamma-irradiation, oxygen permeability, ESR, FTIR} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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  • CAB Abstracts
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