TY  - JOUR
AU  - Vuksanović, Marija M.
AU  - Milošević, Milena
AU  - Dimitrijević, Ivan
AU  - Milentijević, Gordana
AU  - Babincev, Ljiljana
AU  - Gržetić, Jelena
AU  - Marinković, Aleksandar
AU  - Milosavljević, Milutin
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12939
AB  - The increase in waste polymer recycling has helped in promoting sustainability, and together with the use of renewable raw materials, it has become a widespread concept with positive effects on both the economy and ecology. Accordingly, the aim of this study was the synthesis of “green” plasticizers, marked as LA/PG/PET/EG/LA, formed from waste poly(ethylene terephthalate) (PET) and bio-based platform chemicals propylene glycol (PG) and levulinic acid (LA). The structure of the obtained plasticizers was complex, as confirmed by results from nuclear magnetic resonance (NMR) and Fourier-transform infrared spectroscopy (FTIR) analysis. The LA/PG/PET/EG/LA plasticizers and waste poly(vinyl chloride) (PVC) were used in an optimized technology for PVC re-granulate production. The hardness of the PVC-based material with “green” plasticizers, in comparison to commercial plasticizer dioctyl terephthalate (DOTP), increased by 11.3%, while migration decreased. An improved material homogeneity and wettability of the fibers by the matrix were observed using SEM analysis of the material’s fracture surface, with a higher efficiency of intermolecular interactions leading to better mechanical performances of the newly designed materials. Thus, LA/PG/PET/EG/LA are unique materials with good compounding and plasticizing potential for PVC, as revealed by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). In that manner, the use of bio-renewable resources and recycled polymers will contribute to diminishing waste polymer generation, contributing to a lower carbon footprint.
T2  - Processes
T1  - Green Plasticizer for Poly(vinyl chloride) Re-Granulate Production: Case Study of Sustainability Concept Implementation
VL  - 12
IS  - 3
SP  - 520
DO  - 10.3390/pr12030520
ER  - 

@article{
author = "Vuksanović, Marija M. and Milošević, Milena and Dimitrijević, Ivan and Milentijević, Gordana and Babincev, Ljiljana and Gržetić, Jelena and Marinković, Aleksandar and Milosavljević, Milutin",
year = "2024",
abstract = "The increase in waste polymer recycling has helped in promoting sustainability, and together with the use of renewable raw materials, it has become a widespread concept with positive effects on both the economy and ecology. Accordingly, the aim of this study was the synthesis of “green” plasticizers, marked as LA/PG/PET/EG/LA, formed from waste poly(ethylene terephthalate) (PET) and bio-based platform chemicals propylene glycol (PG) and levulinic acid (LA). The structure of the obtained plasticizers was complex, as confirmed by results from nuclear magnetic resonance (NMR) and Fourier-transform infrared spectroscopy (FTIR) analysis. The LA/PG/PET/EG/LA plasticizers and waste poly(vinyl chloride) (PVC) were used in an optimized technology for PVC re-granulate production. The hardness of the PVC-based material with “green” plasticizers, in comparison to commercial plasticizer dioctyl terephthalate (DOTP), increased by 11.3%, while migration decreased. An improved material homogeneity and wettability of the fibers by the matrix were observed using SEM analysis of the material’s fracture surface, with a higher efficiency of intermolecular interactions leading to better mechanical performances of the newly designed materials. Thus, LA/PG/PET/EG/LA are unique materials with good compounding and plasticizing potential for PVC, as revealed by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). In that manner, the use of bio-renewable resources and recycled polymers will contribute to diminishing waste polymer generation, contributing to a lower carbon footprint.",
journal = "Processes",
title = "Green Plasticizer for Poly(vinyl chloride) Re-Granulate Production: Case Study of Sustainability Concept Implementation",
volume = "12",
number = "3",
pages = "520",
doi = "10.3390/pr12030520"
}

Vuksanović, M. M., Milošević, M., Dimitrijević, I., Milentijević, G., Babincev, L., Gržetić, J., Marinković, A.,& Milosavljević, M.. (2024). Green Plasticizer for Poly(vinyl chloride) Re-Granulate Production: Case Study of Sustainability Concept Implementation. in Processes, 12(3), 520.
https://doi.org/10.3390/pr12030520

Vuksanović MM, Milošević M, Dimitrijević I, Milentijević G, Babincev L, Gržetić J, Marinković A, Milosavljević M. Green Plasticizer for Poly(vinyl chloride) Re-Granulate Production: Case Study of Sustainability Concept Implementation. in Processes. 2024;12(3):520.
doi:10.3390/pr12030520 .

Vuksanović, Marija M., Milošević, Milena, Dimitrijević, Ivan, Milentijević, Gordana, Babincev, Ljiljana, Gržetić, Jelena, Marinković, Aleksandar, Milosavljević, Milutin, "Green Plasticizer for Poly(vinyl chloride) Re-Granulate Production: Case Study of Sustainability Concept Implementation" in Processes, 12, no. 3 (2024):520,
https://doi.org/10.3390/pr12030520 . .

TY  - JOUR
AU  - Budimirović, Dragoslav
AU  - Veličković, Zlate S.
AU  - Đokić, Veljko R.
AU  - Milosavljević, Milutin
AU  - Markovski, Jasmina S.
AU  - Lević, Steva
AU  - Marinković, Aleksandar D.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1467
AB  - A novel adsorbents, 6-arm amino polyethylene glycol functionalized multiwall carbon nanotubes (PEG/MWCNT) loaded with alpha-FeOOH (Fe/PEG/MWCNT), and hybrid alpha-FeOOH/alpha-MnO2 nano-deposit (Fe-Mn/PEG/MWCNT) were used for As(V) removal. In a batch test, the influence of pH, contact time, initial ion concentration and temperature on adsorption efficiency was studied. Time-dependent adsorption was best described by pseudo-second-order kinetic model and Weber-Morris model which predicted intra-particle diffusion as a rate controlling step of overall process. Competitive kinetic study in the presence of interfering ions shows low detrimental effect on both capacity and kinetic of As(V) removal. Thermodynamic parameters showed that the adsorption was spontaneous and endothermic processes. Influences of the pH, iron oxide loading and interfering ions were modeled by using Visual MINTEQ software. High adsorption capacities: 49.39 and 59.78 mg g(-1) were obtained for Fe/- and Fe-Mn/PEG/MWCNT, respectively, and multi-cycle reusability indicated high applicability of obtained material. Two step removal process, in a batch study, was successfully performed by using PEG/MWCNT for cations removal in the first step, and Fe or Fe-Mn/PEG/MWCNT for As(V) removal in the second. (C) 2017 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
T2  - Chemical Engineering Research and Design
T1  - Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes
VL  - 119
SP  - 75
EP  - 86
DO  - 10.1016/j.cherd.2017.01.010
ER  - 

@article{
author = "Budimirović, Dragoslav and Veličković, Zlate S. and Đokić, Veljko R. and Milosavljević, Milutin and Markovski, Jasmina S. and Lević, Steva and Marinković, Aleksandar D.",
year = "2017",
abstract = "A novel adsorbents, 6-arm amino polyethylene glycol functionalized multiwall carbon nanotubes (PEG/MWCNT) loaded with alpha-FeOOH (Fe/PEG/MWCNT), and hybrid alpha-FeOOH/alpha-MnO2 nano-deposit (Fe-Mn/PEG/MWCNT) were used for As(V) removal. In a batch test, the influence of pH, contact time, initial ion concentration and temperature on adsorption efficiency was studied. Time-dependent adsorption was best described by pseudo-second-order kinetic model and Weber-Morris model which predicted intra-particle diffusion as a rate controlling step of overall process. Competitive kinetic study in the presence of interfering ions shows low detrimental effect on both capacity and kinetic of As(V) removal. Thermodynamic parameters showed that the adsorption was spontaneous and endothermic processes. Influences of the pH, iron oxide loading and interfering ions were modeled by using Visual MINTEQ software. High adsorption capacities: 49.39 and 59.78 mg g(-1) were obtained for Fe/- and Fe-Mn/PEG/MWCNT, respectively, and multi-cycle reusability indicated high applicability of obtained material. Two step removal process, in a batch study, was successfully performed by using PEG/MWCNT for cations removal in the first step, and Fe or Fe-Mn/PEG/MWCNT for As(V) removal in the second. (C) 2017 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.",
journal = "Chemical Engineering Research and Design",
title = "Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes",
volume = "119",
pages = "75-86",
doi = "10.1016/j.cherd.2017.01.010"
}

Budimirović, D., Veličković, Z. S., Đokić, V. R., Milosavljević, M., Markovski, J. S., Lević, S.,& Marinković, A. D.. (2017). Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes. in Chemical Engineering Research and Design, 119, 75-86.
https://doi.org/10.1016/j.cherd.2017.01.010

Budimirović D, Veličković ZS, Đokić VR, Milosavljević M, Markovski JS, Lević S, Marinković AD. Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes. in Chemical Engineering Research and Design. 2017;119:75-86.
doi:10.1016/j.cherd.2017.01.010 .

Budimirović, Dragoslav, Veličković, Zlate S., Đokić, Veljko R., Milosavljević, Milutin, Markovski, Jasmina S., Lević, Steva, Marinković, Aleksandar D., "Efficient As(V) removal by alpha-FeOOH and alpha-FeOOH/alpha-MnO2 embedded PEG-6-arm functionalized multiwall carbon nanotubes" in Chemical Engineering Research and Design, 119 (2017):75-86,
https://doi.org/10.1016/j.cherd.2017.01.010 . .