TY  - JOUR
AU  - Đoković, Vladimir
AU  - Dudić, Duško
AU  - Dojčilović, Radovan
AU  - Marinković, Filip S.
AU  - Pavlović, Vera P.
AU  - Pavlović, Vladimir B.
AU  - Vlahović, Branislav
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11656
AB  - Barium titanate (BT) perovskite particles were surface modified by means of mechanical treatment and used as inorganic component in polyvinylidene fluoride (PVDF) based composites. The changes in electrical properties of the composite films with increasing in filler content were followed by dielectric spectroscopy, breakdown strength and D-E measurements. A comparison of the properties of the composites prepared with untreated and mechanically activated particles revealed that there is a significant difference in their performances at low filler concentrations (<20 wt%). Introduction of the surface modified ceramic particles into PVDF matrix led to an increase of the dielectric constant without affecting significantly the electrical breakdown strength. In contrast, when as received BT particles were used a filler, both dielectric constants and breakdown strengths of the composite films were lower than the corresponding values observed for the pure PVDF. At higher concentrations, however, the influence of pre-treatment of the filler on the effective electrical properties becomes less significant. The obtained results were discussed in terms of the pronounced crystallization of polar β and γ crystal phases of PVDF in the presence of surface modified BT fillers, which is confirmed by Raman spectroscopy.
T2  - Physica Scripta
T1  - Toward improved PVDF-BaTiO3 composite dielectrics: mechanical activation of the filler versus filler content
VL  - 98
IS  - 11
SP  - 115932
DO  - 10.1088/1402-4896/acff4d
ER  - 

@article{
author = "Đoković, Vladimir and Dudić, Duško and Dojčilović, Radovan and Marinković, Filip S. and Pavlović, Vera P. and Pavlović, Vladimir B. and Vlahović, Branislav",
year = "2023",
abstract = "Barium titanate (BT) perovskite particles were surface modified by means of mechanical treatment and used as inorganic component in polyvinylidene fluoride (PVDF) based composites. The changes in electrical properties of the composite films with increasing in filler content were followed by dielectric spectroscopy, breakdown strength and D-E measurements. A comparison of the properties of the composites prepared with untreated and mechanically activated particles revealed that there is a significant difference in their performances at low filler concentrations (<20 wt%). Introduction of the surface modified ceramic particles into PVDF matrix led to an increase of the dielectric constant without affecting significantly the electrical breakdown strength. In contrast, when as received BT particles were used a filler, both dielectric constants and breakdown strengths of the composite films were lower than the corresponding values observed for the pure PVDF. At higher concentrations, however, the influence of pre-treatment of the filler on the effective electrical properties becomes less significant. The obtained results were discussed in terms of the pronounced crystallization of polar β and γ crystal phases of PVDF in the presence of surface modified BT fillers, which is confirmed by Raman spectroscopy.",
journal = "Physica Scripta",
title = "Toward improved PVDF-BaTiO3 composite dielectrics: mechanical activation of the filler versus filler content",
volume = "98",
number = "11",
pages = "115932",
doi = "10.1088/1402-4896/acff4d"
}

Đoković, V., Dudić, D., Dojčilović, R., Marinković, F. S., Pavlović, V. P., Pavlović, V. B.,& Vlahović, B.. (2023). Toward improved PVDF-BaTiO3 composite dielectrics: mechanical activation of the filler versus filler content. in Physica Scripta, 98(11), 115932.
https://doi.org/10.1088/1402-4896/acff4d

Đoković V, Dudić D, Dojčilović R, Marinković FS, Pavlović VP, Pavlović VB, Vlahović B. Toward improved PVDF-BaTiO3 composite dielectrics: mechanical activation of the filler versus filler content. in Physica Scripta. 2023;98(11):115932.
doi:10.1088/1402-4896/acff4d .

Đoković, Vladimir, Dudić, Duško, Dojčilović, Radovan, Marinković, Filip S., Pavlović, Vera P., Pavlović, Vladimir B., Vlahović, Branislav, "Toward improved PVDF-BaTiO3 composite dielectrics: mechanical activation of the filler versus filler content" in Physica Scripta, 98, no. 11 (2023):115932,
https://doi.org/10.1088/1402-4896/acff4d . .

TY  - JOUR
AU  - Petronijević, Ivan M.
AU  - Dudić, Duško
AU  - Cerović, Dragana D.
AU  - Maletić, Slavica B.
AU  - Marinković, Filip
AU  - Pergal, Marija V.
AU  - Anđelković, Ljubica
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11102
AB  - The dielectric properties of nanocomposites based on isotactic polypropylene (iPP) and atactic polystyrene (aPS) obtained by novel, simple, and environmentally friendly treatment technique have been analyzed in this study. The best treatment conditions to obtain nanocomposites with embedded core-shell particles with enhanced dielectric properties were considered. Treatment of polymer matrices in water solution iron(II)-chloride had the most pronounced precipitation effect, that was directly related to the appearance of higher transition metal concentrations in the iPP and aPS matrices, in comparison to treatments in the other two transition metal salts, MnCl2 and NiCl2. Relative dielectric constant and loss tangent have been studied in the frequency range from 20 Hz to 9 MHz. Embedded core-shell nanoparticles (from 15 to 150 nm in diameter) in a very small amount (1.72E-8 mol/cm3 to 1.17E-5 mol/cm3) resulted in significant improvement (2.5% up to 9.1%) and stabilization of relative dielectric constant value toward higher frequencies and also lowering loss tangent in compare to starting polymer matrices. These properties indicate that materials obtained with the presented treatment technique can be applied as microelectronic packing and with further development of the method in order to obtain a higher concentration of metal ions as energy storage devices.
T2  - Polymers for Advanced Technologies
T1  - Dielectric properties of iPP and aPS nanocomposites with core-shell particles obtained by treatment in transition metal salt solutions
VL  - 34
IS  - 9
SP  - 2841
EP  - 2850
DO  - 10.1002/pat.6110
ER  - 

@article{
author = "Petronijević, Ivan M. and Dudić, Duško and Cerović, Dragana D. and Maletić, Slavica B. and Marinković, Filip and Pergal, Marija V. and Anđelković, Ljubica",
year = "2023",
abstract = "The dielectric properties of nanocomposites based on isotactic polypropylene (iPP) and atactic polystyrene (aPS) obtained by novel, simple, and environmentally friendly treatment technique have been analyzed in this study. The best treatment conditions to obtain nanocomposites with embedded core-shell particles with enhanced dielectric properties were considered. Treatment of polymer matrices in water solution iron(II)-chloride had the most pronounced precipitation effect, that was directly related to the appearance of higher transition metal concentrations in the iPP and aPS matrices, in comparison to treatments in the other two transition metal salts, MnCl2 and NiCl2. Relative dielectric constant and loss tangent have been studied in the frequency range from 20 Hz to 9 MHz. Embedded core-shell nanoparticles (from 15 to 150 nm in diameter) in a very small amount (1.72E-8 mol/cm3 to 1.17E-5 mol/cm3) resulted in significant improvement (2.5% up to 9.1%) and stabilization of relative dielectric constant value toward higher frequencies and also lowering loss tangent in compare to starting polymer matrices. These properties indicate that materials obtained with the presented treatment technique can be applied as microelectronic packing and with further development of the method in order to obtain a higher concentration of metal ions as energy storage devices.",
journal = "Polymers for Advanced Technologies",
title = "Dielectric properties of iPP and aPS nanocomposites with core-shell particles obtained by treatment in transition metal salt solutions",
volume = "34",
number = "9",
pages = "2841-2850",
doi = "10.1002/pat.6110"
}

Petronijević, I. M., Dudić, D., Cerović, D. D., Maletić, S. B., Marinković, F., Pergal, M. V.,& Anđelković, L.. (2023). Dielectric properties of iPP and aPS nanocomposites with core-shell particles obtained by treatment in transition metal salt solutions. in Polymers for Advanced Technologies, 34(9), 2841-2850.
https://doi.org/10.1002/pat.6110

Petronijević IM, Dudić D, Cerović DD, Maletić SB, Marinković F, Pergal MV, Anđelković L. Dielectric properties of iPP and aPS nanocomposites with core-shell particles obtained by treatment in transition metal salt solutions. in Polymers for Advanced Technologies. 2023;34(9):2841-2850.
doi:10.1002/pat.6110 .

Petronijević, Ivan M., Dudić, Duško, Cerović, Dragana D., Maletić, Slavica B., Marinković, Filip, Pergal, Marija V., Anđelković, Ljubica, "Dielectric properties of iPP and aPS nanocomposites with core-shell particles obtained by treatment in transition metal salt solutions" in Polymers for Advanced Technologies, 34, no. 9 (2023):2841-2850,
https://doi.org/10.1002/pat.6110 . .

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  - Peleš, Adriana
AU  - Aleksić, Obrad S.
AU  - Pavlović, Vera P.
AU  - Đoković, Vladimir
AU  - Dojčilović, Radovan
AU  - Nikolić, Zoran M.
AU  - Marinković, Filip S.
AU  - Mitrić, Miodrag
AU  - Blagojević, Vladimir D.
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2018
UR  - http://stacks.iop.org/1402-4896/93/i=10/a=105801?key=crossref.54536d8babe95dbc820e50211f592252
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7898
AB  - The influence of the mechanical activation of ZnO nanoparticle fillers on the structural and electrical properties of the matrix of poly(vinylidenefluoride)-ZnO (PVDF-ZnO) films was investigated. Transmission electron microscopy and scanning electron microscopy analyses showed that mechanical activation in a high energy planetary ball mill reduces the size of ZnO particles. X-ray diffraction and Raman spectroscopy revealed that PVDF crystallized predominantly as the γ-phase. Non-activated ZnO filler reduces the degree of the crystallinity of the matrix and promotes crystallization of α-phase of PVDF in the film, while the fillers activated for 5 and 10 min induce crystallization of β-phase, indicating that mechanical activation of the filler can be used as a general method for fabrication of PVDF composites with increased content of piezoelectric β-phase crystals. Dielectric spectroscopy measurements show that polymer composite with the high content of β-phase (with ZnO filler activated for 5 min) exhibits the highest value of dielectric permittivity in 150-400 K range of temperatures. Kinetic analysis shows combined effects of increased surface area and increased concentration of surface defects on the interactions between polymer chains and activated nanoparticles. © 2018 IOP Publishing Ltd.
T2  - Physica Scripta
T1  - Structural and electrical properties of ferroelectric poly(vinylidene fluoride) and mechanically activated ZnO nanoparticle composite films
VL  - 93
IS  - 10
SP  - 105801
DO  - 10.1088/1402-4896/aad749
ER  - 

@article{
author = "Peleš, Adriana and Aleksić, Obrad S. and Pavlović, Vera P. and Đoković, Vladimir and Dojčilović, Radovan and Nikolić, Zoran M. and Marinković, Filip S. and Mitrić, Miodrag and Blagojević, Vladimir D. and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2018",
abstract = "The influence of the mechanical activation of ZnO nanoparticle fillers on the structural and electrical properties of the matrix of poly(vinylidenefluoride)-ZnO (PVDF-ZnO) films was investigated. Transmission electron microscopy and scanning electron microscopy analyses showed that mechanical activation in a high energy planetary ball mill reduces the size of ZnO particles. X-ray diffraction and Raman spectroscopy revealed that PVDF crystallized predominantly as the γ-phase. Non-activated ZnO filler reduces the degree of the crystallinity of the matrix and promotes crystallization of α-phase of PVDF in the film, while the fillers activated for 5 and 10 min induce crystallization of β-phase, indicating that mechanical activation of the filler can be used as a general method for fabrication of PVDF composites with increased content of piezoelectric β-phase crystals. Dielectric spectroscopy measurements show that polymer composite with the high content of β-phase (with ZnO filler activated for 5 min) exhibits the highest value of dielectric permittivity in 150-400 K range of temperatures. Kinetic analysis shows combined effects of increased surface area and increased concentration of surface defects on the interactions between polymer chains and activated nanoparticles. © 2018 IOP Publishing Ltd.",
journal = "Physica Scripta",
title = "Structural and electrical properties of ferroelectric poly(vinylidene fluoride) and mechanically activated ZnO nanoparticle composite films",
volume = "93",
number = "10",
pages = "105801",
doi = "10.1088/1402-4896/aad749"
}

Peleš, A., Aleksić, O. S., Pavlović, V. P., Đoković, V., Dojčilović, R., Nikolić, Z. M., Marinković, F. S., Mitrić, M., Blagojević, V. D., Vlahović, B.,& Pavlović, V. B.. (2018). Structural and electrical properties of ferroelectric poly(vinylidene fluoride) and mechanically activated ZnO nanoparticle composite films. in Physica Scripta, 93(10), 105801.
https://doi.org/10.1088/1402-4896/aad749

Peleš A, Aleksić OS, Pavlović VP, Đoković V, Dojčilović R, Nikolić ZM, Marinković FS, Mitrić M, Blagojević VD, Vlahović B, Pavlović VB. Structural and electrical properties of ferroelectric poly(vinylidene fluoride) and mechanically activated ZnO nanoparticle composite films. in Physica Scripta. 2018;93(10):105801.
doi:10.1088/1402-4896/aad749 .

Peleš, Adriana, Aleksić, Obrad S., Pavlović, Vera P., Đoković, Vladimir, Dojčilović, Radovan, Nikolić, Zoran M., Marinković, Filip S., Mitrić, Miodrag, Blagojević, Vladimir D., Vlahović, Branislav, Pavlović, Vladimir B., "Structural and electrical properties of ferroelectric poly(vinylidene fluoride) and mechanically activated ZnO nanoparticle composite films" in Physica Scripta, 93, no. 10 (2018):105801,
https://doi.org/10.1088/1402-4896/aad749 . .

TY  - JOUR
AU  - Dudić, Duško
AU  - Luyt, Adriaan S.
AU  - Marinković, Filip S.
AU  - Petronijević, Ivan M.
AU  - Dojčilović, Jablan R.
AU  - Kostoski, Dušan
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/341
AB  - Electrical AC conductivity of semiconducting low-density polyethylene (LDPE)-carbon black (CB) composites has been studied in the frequency range between 24 Hz and 75 kHz and the temperature range from 295 to 355 K. The composites were gamma irradiated at room temperature to different absorbed doses up to 300 kGy. The effects of gamma irradiation on the AC conductivity at room temperature and the conductive temperature coefficients (CTC) were observed. It was found that the effect of gamma irradiation on the stability of AC conductivity at elevated temperature (355 K) is dependent on the carbon black content and the gamma irradiation dose. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Radiation Physics and Chemistry
T1  - The effect of gamma irradiation on the thermal behavior of dielectric properties of linear low-density/carbon black semiconductive composites
VL  - 107
SP  - 89
EP  - 94
DO  - 10.1016/j.radphyschem.2014.10.003
ER  - 

@article{
author = "Dudić, Duško and Luyt, Adriaan S. and Marinković, Filip S. and Petronijević, Ivan M. and Dojčilović, Jablan R. and Kostoski, Dušan",
year = "2015",
abstract = "Electrical AC conductivity of semiconducting low-density polyethylene (LDPE)-carbon black (CB) composites has been studied in the frequency range between 24 Hz and 75 kHz and the temperature range from 295 to 355 K. The composites were gamma irradiated at room temperature to different absorbed doses up to 300 kGy. The effects of gamma irradiation on the AC conductivity at room temperature and the conductive temperature coefficients (CTC) were observed. It was found that the effect of gamma irradiation on the stability of AC conductivity at elevated temperature (355 K) is dependent on the carbon black content and the gamma irradiation dose. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Radiation Physics and Chemistry",
title = "The effect of gamma irradiation on the thermal behavior of dielectric properties of linear low-density/carbon black semiconductive composites",
volume = "107",
pages = "89-94",
doi = "10.1016/j.radphyschem.2014.10.003"
}

Dudić, D., Luyt, A. S., Marinković, F. S., Petronijević, I. M., Dojčilović, J. R.,& Kostoski, D.. (2015). The effect of gamma irradiation on the thermal behavior of dielectric properties of linear low-density/carbon black semiconductive composites. in Radiation Physics and Chemistry, 107, 89-94.
https://doi.org/10.1016/j.radphyschem.2014.10.003

Dudić D, Luyt AS, Marinković FS, Petronijević IM, Dojčilović JR, Kostoski D. The effect of gamma irradiation on the thermal behavior of dielectric properties of linear low-density/carbon black semiconductive composites. in Radiation Physics and Chemistry. 2015;107:89-94.
doi:10.1016/j.radphyschem.2014.10.003 .

Dudić, Duško, Luyt, Adriaan S., Marinković, Filip S., Petronijević, Ivan M., Dojčilović, Jablan R., Kostoski, Dušan, "The effect of gamma irradiation on the thermal behavior of dielectric properties of linear low-density/carbon black semiconductive composites" in Radiation Physics and Chemistry, 107 (2015):89-94,
https://doi.org/10.1016/j.radphyschem.2014.10.003 . .

TY  - JOUR
AU  - Petronijević, Ivan M.
AU  - Simonovic, K.
AU  - Marinković, Filip S.
AU  - Dojčilović, Jablan R.
AU  - Luyt, Adriaan S.
AU  - Dudić, Duško
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/120
AB  - This study describes the possibility of dielectric characterization of the initial stages of ageing in an low-density polyethylene (LDPE) + graphite composite, which is not possible using the standard method of dielectric spectroscopy. It is shown that the differences between the delay angles, Delta phi = phi(TRI)-phi(SIN), obtained using triangular and sinusoidal excitations on the composite samples, shows a maximum, and at the same time the position of this maximum shows more sensitivity to changes in the electrical properties of the material caused by ageing than other dielectric parameters. In order to clarify the applied methodology, a comparative analysis of the dielectric properties of other polymers poly(vinyl chloride) (PVC) and poly(vinyl alcohol) (PVA) and a conductive polymer composite (LDPE + carbon black) with respect to the application of sinusoidal and triangular electrical signals was carried out. Based on the presented results, we believe that the position of the peak in the frequency spectra of the difference between the delay angles obtained by using triangular and sinusoidal signals may be a suitable parameter for the dielectric characterization of polymeric materials.
T2  - Express Polymer Letters
T1  - The detection of the early stages of ageing in an LDPE plus graphite composite by comparison of dielectric responses induced by sinusoidal and triangular signals
VL  - 8
IS  - 10
SP  - 733
EP  - 744
DO  - 10.3144/expresspolymlett.2014.76
ER  - 

@article{
author = "Petronijević, Ivan M. and Simonovic, K. and Marinković, Filip S. and Dojčilović, Jablan R. and Luyt, Adriaan S. and Dudić, Duško",
year = "2014",
abstract = "This study describes the possibility of dielectric characterization of the initial stages of ageing in an low-density polyethylene (LDPE) + graphite composite, which is not possible using the standard method of dielectric spectroscopy. It is shown that the differences between the delay angles, Delta phi = phi(TRI)-phi(SIN), obtained using triangular and sinusoidal excitations on the composite samples, shows a maximum, and at the same time the position of this maximum shows more sensitivity to changes in the electrical properties of the material caused by ageing than other dielectric parameters. In order to clarify the applied methodology, a comparative analysis of the dielectric properties of other polymers poly(vinyl chloride) (PVC) and poly(vinyl alcohol) (PVA) and a conductive polymer composite (LDPE + carbon black) with respect to the application of sinusoidal and triangular electrical signals was carried out. Based on the presented results, we believe that the position of the peak in the frequency spectra of the difference between the delay angles obtained by using triangular and sinusoidal signals may be a suitable parameter for the dielectric characterization of polymeric materials.",
journal = "Express Polymer Letters",
title = "The detection of the early stages of ageing in an LDPE plus graphite composite by comparison of dielectric responses induced by sinusoidal and triangular signals",
volume = "8",
number = "10",
pages = "733-744",
doi = "10.3144/expresspolymlett.2014.76"
}

Petronijević, I. M., Simonovic, K., Marinković, F. S., Dojčilović, J. R., Luyt, A. S.,& Dudić, D.. (2014). The detection of the early stages of ageing in an LDPE plus graphite composite by comparison of dielectric responses induced by sinusoidal and triangular signals. in Express Polymer Letters, 8(10), 733-744.
https://doi.org/10.3144/expresspolymlett.2014.76

Petronijević IM, Simonovic K, Marinković FS, Dojčilović JR, Luyt AS, Dudić D. The detection of the early stages of ageing in an LDPE plus graphite composite by comparison of dielectric responses induced by sinusoidal and triangular signals. in Express Polymer Letters. 2014;8(10):733-744.
doi:10.3144/expresspolymlett.2014.76 .

Petronijević, Ivan M., Simonovic, K., Marinković, Filip S., Dojčilović, Jablan R., Luyt, Adriaan S., Dudić, Duško, "The detection of the early stages of ageing in an LDPE plus graphite composite by comparison of dielectric responses induced by sinusoidal and triangular signals" in Express Polymer Letters, 8, no. 10 (2014):733-744,
https://doi.org/10.3144/expresspolymlett.2014.76 . .