TY  - JOUR
AU  - Škipina, Blanka
AU  - Petronijevic, Ivan M.
AU  - Luyt, Adriaan S.
AU  - Dojčinović, Biljana
AU  - Duvenhage, Mart Mari
AU  - Swart, Hendrik C.
AU  - Suljovrujić, E. H. 
AU  - Dudić, Duško
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3854
AB  - This study provides a new insight into the relationships between absorption and adsorption processes that occur during the treatment of iPP in aqueous solutions of metal-chloride salts, as well as the impact of these processes on the electrical conductivity of this nonpolar polymer. The polypropylene films (0.5 mm) were exposed to three-day treatments in aqueous solutions of chlorine salts of some alkali and transition metals at temperatures of 22 °C and 80 °C. The treatments induced an increase in the electrical conductivity of iPP, up to 800%. DC conductivity is not directly proportional to the concentrations of metals in the treated films due to the complex relationships between diffusion and adsorption processes. The experiment was set up to simulate the real-world conditions and the study provides practical knowledge on the stability of the electrical conductivity of iPP under exposure to aqueous solutions. The influence of electric aging on the electrical conductivity of the treated films was also examined.
PB  - Elsevier
T2  - Surfaces and Interfaces
T1  - Ionic diffusion in iPP: DC electrical conductivity
VL  - 21
SP  - 100772
DO  - 10.1016/j.surfin.2020.100772
ER  - 

@article{
author = "Škipina, Blanka and Petronijevic, Ivan M. and Luyt, Adriaan S. and Dojčinović, Biljana and Duvenhage, Mart Mari and Swart, Hendrik C. and Suljovrujić, E. H.  and Dudić, Duško",
year = "2020",
abstract = "This study provides a new insight into the relationships between absorption and adsorption processes that occur during the treatment of iPP in aqueous solutions of metal-chloride salts, as well as the impact of these processes on the electrical conductivity of this nonpolar polymer. The polypropylene films (0.5 mm) were exposed to three-day treatments in aqueous solutions of chlorine salts of some alkali and transition metals at temperatures of 22 °C and 80 °C. The treatments induced an increase in the electrical conductivity of iPP, up to 800%. DC conductivity is not directly proportional to the concentrations of metals in the treated films due to the complex relationships between diffusion and adsorption processes. The experiment was set up to simulate the real-world conditions and the study provides practical knowledge on the stability of the electrical conductivity of iPP under exposure to aqueous solutions. The influence of electric aging on the electrical conductivity of the treated films was also examined.",
publisher = "Elsevier",
journal = "Surfaces and Interfaces",
title = "Ionic diffusion in iPP: DC electrical conductivity",
volume = "21",
pages = "100772",
doi = "10.1016/j.surfin.2020.100772"
}

Škipina, B., Petronijevic, I. M., Luyt, A. S., Dojčinović, B., Duvenhage, M. M., Swart, H. C., Suljovrujić, E. H.,& Dudić, D.. (2020). Ionic diffusion in iPP: DC electrical conductivity. in Surfaces and Interfaces
Elsevier., 21, 100772.
https://doi.org/10.1016/j.surfin.2020.100772

Škipina B, Petronijevic IM, Luyt AS, Dojčinović B, Duvenhage MM, Swart HC, Suljovrujić EH, Dudić D. Ionic diffusion in iPP: DC electrical conductivity. in Surfaces and Interfaces. 2020;21:100772.
doi:10.1016/j.surfin.2020.100772 .

Škipina, Blanka, Petronijevic, Ivan M., Luyt, Adriaan S., Dojčinović, Biljana, Duvenhage, Mart Mari, Swart, Hendrik C., Suljovrujić, E. H. , Dudić, Duško, "Ionic diffusion in iPP: DC electrical conductivity" in Surfaces and Interfaces, 21 (2020):100772,
https://doi.org/10.1016/j.surfin.2020.100772 . .

TY  - JOUR
AU  - Škipina, Blanka
AU  - Petronijevic, Ivan M.
AU  - Luyt, Adriaan S.
AU  - Dojčinović, Biljana
AU  - Duvenhage, Mart Mari
AU  - Swart, Hendrik C.
AU  - Suljovrujić, E. H.
AU  - Dudić, Duško
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3855
AB  - This study provides a new insight into the relationships between absorption and adsorption processes that occur during the treatment of iPP in aqueous solutions of metal-chloride salts, as well as the impact of these processes on the electrical conductivity of this nonpolar polymer. The polypropylene films (0.5 mm) were exposed to three-day treatments in aqueous solutions of chlorine salts of some alkali and transition metals at temperatures of 22 °C and 80 °C. The treatments induced an increase in the electrical conductivity of iPP, up to 800%. DC conductivity is not directly proportional to the concentrations of metals in the treated films due to the complex relationships between diffusion and adsorption processes. The experiment was set up to simulate the real-world conditions and the study provides practical knowledge on the stability of the electrical conductivity of iPP under exposure to aqueous solutions. The influence of electric aging on the electrical conductivity of the treated films was also examined.
PB  - Elsevier
T2  - Surfaces and Interfaces
T1  - Ionic diffusion in iPP: DC electrical conductivity
VL  - 21
SP  - 100772
DO  - 10.1016/j.surfin.2020.100772
ER  - 

@article{
author = "Škipina, Blanka and Petronijevic, Ivan M. and Luyt, Adriaan S. and Dojčinović, Biljana and Duvenhage, Mart Mari and Swart, Hendrik C. and Suljovrujić, E. H. and Dudić, Duško",
year = "2020",
abstract = "This study provides a new insight into the relationships between absorption and adsorption processes that occur during the treatment of iPP in aqueous solutions of metal-chloride salts, as well as the impact of these processes on the electrical conductivity of this nonpolar polymer. The polypropylene films (0.5 mm) were exposed to three-day treatments in aqueous solutions of chlorine salts of some alkali and transition metals at temperatures of 22 °C and 80 °C. The treatments induced an increase in the electrical conductivity of iPP, up to 800%. DC conductivity is not directly proportional to the concentrations of metals in the treated films due to the complex relationships between diffusion and adsorption processes. The experiment was set up to simulate the real-world conditions and the study provides practical knowledge on the stability of the electrical conductivity of iPP under exposure to aqueous solutions. The influence of electric aging on the electrical conductivity of the treated films was also examined.",
publisher = "Elsevier",
journal = "Surfaces and Interfaces",
title = "Ionic diffusion in iPP: DC electrical conductivity",
volume = "21",
pages = "100772",
doi = "10.1016/j.surfin.2020.100772"
}

Škipina, B., Petronijevic, I. M., Luyt, A. S., Dojčinović, B., Duvenhage, M. M., Swart, H. C., Suljovrujić, E. H.,& Dudić, D.. (2020). Ionic diffusion in iPP: DC electrical conductivity. in Surfaces and Interfaces
Elsevier., 21, 100772.
https://doi.org/10.1016/j.surfin.2020.100772

Škipina B, Petronijevic IM, Luyt AS, Dojčinović B, Duvenhage MM, Swart HC, Suljovrujić EH, Dudić D. Ionic diffusion in iPP: DC electrical conductivity. in Surfaces and Interfaces. 2020;21:100772.
doi:10.1016/j.surfin.2020.100772 .

Škipina, Blanka, Petronijevic, Ivan M., Luyt, Adriaan S., Dojčinović, Biljana, Duvenhage, Mart Mari, Swart, Hendrik C., Suljovrujić, E. H., Dudić, Duško, "Ionic diffusion in iPP: DC electrical conductivity" in Surfaces and Interfaces, 21 (2020):100772,
https://doi.org/10.1016/j.surfin.2020.100772 . .

TY  - JOUR
AU  - Petronijevic, Ivan M.
AU  - Cerovic, Dragana D.
AU  - Dudic, Dusko A.
AU  - Dojčilović, Jablan R.
AU  - Dojčinović, Biljana
AU  - Pergal, Marija
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2289
AB  - In this paper, a new simple and environmentally friendly treatment technique for obtaining polymer nanocomposites with appropriate dielectric properties has been presented. Sheets of isotactic polypropylene and atactic polystyrene were immersed in 3 saturated water solutions of alkali metal salts (LiCl, NaCl, and KCl) at 2 fixed temperatures (23 degrees C and 90 degrees C), and 3 DC electrical potentials (+4kV, -4kV, and ground potential) were applied. A quantification of alkali metals in the polymer sheets was conducted by inductively coupled plasma optic emission spectrometry. The obtained concentration values were from 7.3810(-9)mol/cm(3) to 1.2510(-7)mol/cm(3). The qualitative analysis of potassium distribution in the polymer matrix was conducted by time-of-flight secondary ion mass spectrometry cross-sectional record. The relative dielectric constant (epsilon) of samples was investigated in the frequency range from 20Hz to 9MHz at the constant temperature of 22 degrees C. Stable values of epsilon in fully measured frequency range were observed for both pure and treated samples. Next, the results of the dielectric spectroscopy measurements were compared and established the kind of treatment that provided the highest value of epsilon. The relationship between the concentrations of alkali metals and the values of relative dielectric constant was determined for the samples obtained by a treatment at 90 degrees C and +4kV.
PB  - Wiley, Hoboken
T2  - Polymers For Advanced Technologies
T1  - Dielectric spectroscopy of nanocomposites based on iPP and aPS treated in the water solutions of alkali metal salts
VL  - 29
IS  - 6
SP  - 1826
EP  - 1833
DO  - 10.1002/pat.4289
ER  - 

@article{
author = "Petronijevic, Ivan M. and Cerovic, Dragana D. and Dudic, Dusko A. and Dojčilović, Jablan R. and Dojčinović, Biljana and Pergal, Marija",
year = "2018",
abstract = "In this paper, a new simple and environmentally friendly treatment technique for obtaining polymer nanocomposites with appropriate dielectric properties has been presented. Sheets of isotactic polypropylene and atactic polystyrene were immersed in 3 saturated water solutions of alkali metal salts (LiCl, NaCl, and KCl) at 2 fixed temperatures (23 degrees C and 90 degrees C), and 3 DC electrical potentials (+4kV, -4kV, and ground potential) were applied. A quantification of alkali metals in the polymer sheets was conducted by inductively coupled plasma optic emission spectrometry. The obtained concentration values were from 7.3810(-9)mol/cm(3) to 1.2510(-7)mol/cm(3). The qualitative analysis of potassium distribution in the polymer matrix was conducted by time-of-flight secondary ion mass spectrometry cross-sectional record. The relative dielectric constant (epsilon) of samples was investigated in the frequency range from 20Hz to 9MHz at the constant temperature of 22 degrees C. Stable values of epsilon in fully measured frequency range were observed for both pure and treated samples. Next, the results of the dielectric spectroscopy measurements were compared and established the kind of treatment that provided the highest value of epsilon. The relationship between the concentrations of alkali metals and the values of relative dielectric constant was determined for the samples obtained by a treatment at 90 degrees C and +4kV.",
publisher = "Wiley, Hoboken",
journal = "Polymers For Advanced Technologies",
title = "Dielectric spectroscopy of nanocomposites based on iPP and aPS treated in the water solutions of alkali metal salts",
volume = "29",
number = "6",
pages = "1826-1833",
doi = "10.1002/pat.4289"
}

Petronijevic, I. M., Cerovic, D. D., Dudic, D. A., Dojčilović, J. R., Dojčinović, B.,& Pergal, M.. (2018). Dielectric spectroscopy of nanocomposites based on iPP and aPS treated in the water solutions of alkali metal salts. in Polymers For Advanced Technologies
Wiley, Hoboken., 29(6), 1826-1833.
https://doi.org/10.1002/pat.4289

Petronijevic IM, Cerovic DD, Dudic DA, Dojčilović JR, Dojčinović B, Pergal M. Dielectric spectroscopy of nanocomposites based on iPP and aPS treated in the water solutions of alkali metal salts. in Polymers For Advanced Technologies. 2018;29(6):1826-1833.
doi:10.1002/pat.4289 .

Petronijevic, Ivan M., Cerovic, Dragana D., Dudic, Dusko A., Dojčilović, Jablan R., Dojčinović, Biljana, Pergal, Marija, "Dielectric spectroscopy of nanocomposites based on iPP and aPS treated in the water solutions of alkali metal salts" in Polymers For Advanced Technologies, 29, no. 6 (2018):1826-1833,
https://doi.org/10.1002/pat.4289 . .