TY  - JOUR
AU  - Marinković, Filip S.
AU  - Škipina, Blanka
AU  - Vuković, Danijela
AU  - Langner, Ernst H. G.
AU  - Luyt, Adriaan S.
AU  - Dudić, Duško
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10602
AB  - Metal–organic frameworks (MOFs) are a class of materials that are increasingly used for the detection and separation of gases. This article presents the influence of gamma radiation on the dielectric properties of a LDPE/ZIF-8 composite that can be used for the production of gas sensors and massive gas absorbers. A low-density polyethylene (LDPE)–microsized zeolitic imidazolate framework-8 (ZIF-8) composite, obtained by melt mixing (95/5 weight ratio), was gamma-irradiated at room temperature to different absorbed doses up to 300 kGy. Infrared spectroscopy and optical microscopy confirmed the degradation of the ZIF-8 due to the gamma irradiation. The AC conductivity (admittance) of the samples was studied in the frequency range of 24 Hz − 120 kHz and a temperature range 200–350 K. The composite showed larger admittance components relative to the admittance components of pure LDPE; the conductance of the samples increased almost linearly with increasing irradiation dose. On the other hand, the change in dielectric permittivity of the LDPE and the composite due to irradiation was weak and showed nonlinear behavior with increasing radiation dose.
T2  - Journal of Macromolecular Science, Part B
T1  - AC Conductivity of Gamma Irradiated LDPE/ZIF-8 Composite
SP  - 1
EP  - 9
DO  - 10.1080/00222348.2022.2159697
ER  - 

@article{
author = "Marinković, Filip S. and Škipina, Blanka and Vuković, Danijela and Langner, Ernst H. G. and Luyt, Adriaan S. and Dudić, Duško",
year = "2023",
abstract = "Metal–organic frameworks (MOFs) are a class of materials that are increasingly used for the detection and separation of gases. This article presents the influence of gamma radiation on the dielectric properties of a LDPE/ZIF-8 composite that can be used for the production of gas sensors and massive gas absorbers. A low-density polyethylene (LDPE)–microsized zeolitic imidazolate framework-8 (ZIF-8) composite, obtained by melt mixing (95/5 weight ratio), was gamma-irradiated at room temperature to different absorbed doses up to 300 kGy. Infrared spectroscopy and optical microscopy confirmed the degradation of the ZIF-8 due to the gamma irradiation. The AC conductivity (admittance) of the samples was studied in the frequency range of 24 Hz − 120 kHz and a temperature range 200–350 K. The composite showed larger admittance components relative to the admittance components of pure LDPE; the conductance of the samples increased almost linearly with increasing irradiation dose. On the other hand, the change in dielectric permittivity of the LDPE and the composite due to irradiation was weak and showed nonlinear behavior with increasing radiation dose.",
journal = "Journal of Macromolecular Science, Part B",
title = "AC Conductivity of Gamma Irradiated LDPE/ZIF-8 Composite",
pages = "1-9",
doi = "10.1080/00222348.2022.2159697"
}

Marinković, F. S., Škipina, B., Vuković, D., Langner, E. H. G., Luyt, A. S.,& Dudić, D.. (2023). AC Conductivity of Gamma Irradiated LDPE/ZIF-8 Composite. in Journal of Macromolecular Science, Part B, 1-9.
https://doi.org/10.1080/00222348.2022.2159697

Marinković FS, Škipina B, Vuković D, Langner EHG, Luyt AS, Dudić D. AC Conductivity of Gamma Irradiated LDPE/ZIF-8 Composite. in Journal of Macromolecular Science, Part B. 2023;:1-9.
doi:10.1080/00222348.2022.2159697 .

Marinković, Filip S., Škipina, Blanka, Vuković, Danijela, Langner, Ernst H. G., Luyt, Adriaan S., Dudić, Duško, "AC Conductivity of Gamma Irradiated LDPE/ZIF-8 Composite" in Journal of Macromolecular Science, Part B (2023):1-9,
https://doi.org/10.1080/00222348.2022.2159697 . .

TY  - JOUR
AU  - Vuković, Danijela
AU  - Škipina, Blanka
AU  - Maletić, Slavica
AU  - Cerović, Dragana D.
AU  - Duvenhage, Mart-Mari
AU  - Luyt, Adriaan Stephanus
AU  - Mirjanić, Dragoljub
AU  - Dudić, Duško
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9813
AB  - Polymer composite films of tris-(8-hydroxy-quinoline) aluminum (Alq3) and polymethyl methacrylate (PMMA) at two different concentrations were investigated. Dielectric properties of the samples were measured in broad frequency range and results show an increase in specific conductance and susceptance by adding Alq3 in PMMA. Changes in dielectric spectra caused by irradiation of the samples with LED lamps at different wavelengths were also recorded. The samples were examined by UV–Vis and Fourier transform infrared spectroscopy. The interaction between Alq3 and the polymer matrix was observed in the photoluminescence spectroscopy spectra. The doping of the PMMA with different concentrations of the Alq3 leads to the unique photodielectric properties of the resulting composite, and that is the main result of this study. Due to its interesting optical and photodielectric properties, PMMA/Alq3 film may find application in solar cells and optoelectronics.
T2  - Journal of Applied Polymer Science
T1  - The study of optical and photodielectric properties of polymethyl methacrylate and tris-(8-hydroxy-quinoline) aluminum (Alq3) composites
VL  - 138
IS  - 39
SP  - 50992
DO  - 10.1002/app.50992
ER  - 

@article{
author = "Vuković, Danijela and Škipina, Blanka and Maletić, Slavica and Cerović, Dragana D. and Duvenhage, Mart-Mari and Luyt, Adriaan Stephanus and Mirjanić, Dragoljub and Dudić, Duško",
year = "2021",
abstract = "Polymer composite films of tris-(8-hydroxy-quinoline) aluminum (Alq3) and polymethyl methacrylate (PMMA) at two different concentrations were investigated. Dielectric properties of the samples were measured in broad frequency range and results show an increase in specific conductance and susceptance by adding Alq3 in PMMA. Changes in dielectric spectra caused by irradiation of the samples with LED lamps at different wavelengths were also recorded. The samples were examined by UV–Vis and Fourier transform infrared spectroscopy. The interaction between Alq3 and the polymer matrix was observed in the photoluminescence spectroscopy spectra. The doping of the PMMA with different concentrations of the Alq3 leads to the unique photodielectric properties of the resulting composite, and that is the main result of this study. Due to its interesting optical and photodielectric properties, PMMA/Alq3 film may find application in solar cells and optoelectronics.",
journal = "Journal of Applied Polymer Science",
title = "The study of optical and photodielectric properties of polymethyl methacrylate and tris-(8-hydroxy-quinoline) aluminum (Alq3) composites",
volume = "138",
number = "39",
pages = "50992",
doi = "10.1002/app.50992"
}

Vuković, D., Škipina, B., Maletić, S., Cerović, D. D., Duvenhage, M., Luyt, A. S., Mirjanić, D.,& Dudić, D.. (2021). The study of optical and photodielectric properties of polymethyl methacrylate and tris-(8-hydroxy-quinoline) aluminum (Alq3) composites. in Journal of Applied Polymer Science, 138(39), 50992.
https://doi.org/10.1002/app.50992

Vuković D, Škipina B, Maletić S, Cerović DD, Duvenhage M, Luyt AS, Mirjanić D, Dudić D. The study of optical and photodielectric properties of polymethyl methacrylate and tris-(8-hydroxy-quinoline) aluminum (Alq3) composites. in Journal of Applied Polymer Science. 2021;138(39):50992.
doi:10.1002/app.50992 .

Vuković, Danijela, Škipina, Blanka, Maletić, Slavica, Cerović, Dragana D., Duvenhage, Mart-Mari, Luyt, Adriaan Stephanus, Mirjanić, Dragoljub, Dudić, Duško, "The study of optical and photodielectric properties of polymethyl methacrylate and tris-(8-hydroxy-quinoline) aluminum (Alq3) composites" in Journal of Applied Polymer Science, 138, no. 39 (2021):50992,
https://doi.org/10.1002/app.50992 . .