TY  - CONF
AU  - Panić, Vesna
AU  - Jovanović, Jelena D.
AU  - Savić, Sanja I.
AU  - Marković, Maja D.
AU  - Radulović, Aleksandra
AU  - Pantić, Olga
AU  - Adnađević, Borivoj K.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7403
AB  - The preparation of zeolite rich polymeric materials presents a challenge due to the zeolite settlingduring synthesis, poor miscibility, the phase separation and generally insufficient interactionsbetween polymers and zeolites. Combination of LTA, i.e. MFI, zeolite and poly(methacrylic acid) in theform of soft hydrogel network provided the stabilization of the zeolite particles and enabled synthesisof composite hydrogels with very high zeolite concentrations (26-52 mass%).The investigated morphological, mechanical and primary structural properties, water swelling abilityand thermal stability revealed high dependence on zeolite concentration and type. Zeolite particleswere uniformly dispersed in PMAA matrix as confirmed by SEM and there was no agglomeration orzeolite leaching despite very high concentrations. FTIR spectra disclosed the existence of functionalgroups of PMAA network and both zeolite types that interacted mutually and led to increasedcrosslinking density. The established interactions changed the PMAA chain dynamics around theparticles, especially of the LTA type, as showed by XRD. Having much more surface groups capable togenerate interaction with PMAA, LTA zeolite stronger affected all of the investigated properties.Composites’ mechanics was improved both in dry and swollen state compared to the PMAA hydrogel(up to 21.8 times for the sample with the highest LTA concentration). Thermal stability of thecomposites increased with increasing zeolite concentration.The composition-property correlations were determined making this work the base for furtherdevelopment of tailor-made zeolite-PMAA composite hydrogels aimed for specific application.Composites were tested as low-cost, regenerative, environmentally friendly sorbents and showedbetter removal of cationic dye compared to both components (PMAA and zeolite) alone.
PB  - Yuktan Technologies
C3  - Abstract Book / 4th International Conference on Advanced Polymer Science and Engineering, 23-25 October, 2023, Valencia, Spain
T1  - Insight and Comparison of Property Improvement in LTA and MFI Zeolite Reinforced Poly(methacrylic acid) Highly Concentrated Composite Hydrogels
SP  - 67
EP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_cer_7403
ER  - 

@conference{
author = "Panić, Vesna and Jovanović, Jelena D. and Savić, Sanja I. and Marković, Maja D. and Radulović, Aleksandra and Pantić, Olga and Adnađević, Borivoj K.",
year = "2023",
abstract = "The preparation of zeolite rich polymeric materials presents a challenge due to the zeolite settlingduring synthesis, poor miscibility, the phase separation and generally insufficient interactionsbetween polymers and zeolites. Combination of LTA, i.e. MFI, zeolite and poly(methacrylic acid) in theform of soft hydrogel network provided the stabilization of the zeolite particles and enabled synthesisof composite hydrogels with very high zeolite concentrations (26-52 mass%).The investigated morphological, mechanical and primary structural properties, water swelling abilityand thermal stability revealed high dependence on zeolite concentration and type. Zeolite particleswere uniformly dispersed in PMAA matrix as confirmed by SEM and there was no agglomeration orzeolite leaching despite very high concentrations. FTIR spectra disclosed the existence of functionalgroups of PMAA network and both zeolite types that interacted mutually and led to increasedcrosslinking density. The established interactions changed the PMAA chain dynamics around theparticles, especially of the LTA type, as showed by XRD. Having much more surface groups capable togenerate interaction with PMAA, LTA zeolite stronger affected all of the investigated properties.Composites’ mechanics was improved both in dry and swollen state compared to the PMAA hydrogel(up to 21.8 times for the sample with the highest LTA concentration). Thermal stability of thecomposites increased with increasing zeolite concentration.The composition-property correlations were determined making this work the base for furtherdevelopment of tailor-made zeolite-PMAA composite hydrogels aimed for specific application.Composites were tested as low-cost, regenerative, environmentally friendly sorbents and showedbetter removal of cationic dye compared to both components (PMAA and zeolite) alone.",
publisher = "Yuktan Technologies",
journal = "Abstract Book / 4th International Conference on Advanced Polymer Science and Engineering, 23-25 October, 2023, Valencia, Spain",
title = "Insight and Comparison of Property Improvement in LTA and MFI Zeolite Reinforced Poly(methacrylic acid) Highly Concentrated Composite Hydrogels",
pages = "67-67",
url = "https://hdl.handle.net/21.15107/rcub_cer_7403"
}

Panić, V., Jovanović, J. D., Savić, S. I., Marković, M. D., Radulović, A., Pantić, O.,& Adnađević, B. K.. (2023). Insight and Comparison of Property Improvement in LTA and MFI Zeolite Reinforced Poly(methacrylic acid) Highly Concentrated Composite Hydrogels. in Abstract Book / 4th International Conference on Advanced Polymer Science and Engineering, 23-25 October, 2023, Valencia, Spain
Yuktan Technologies., 67-67.
https://hdl.handle.net/21.15107/rcub_cer_7403

Panić V, Jovanović JD, Savić SI, Marković MD, Radulović A, Pantić O, Adnađević BK. Insight and Comparison of Property Improvement in LTA and MFI Zeolite Reinforced Poly(methacrylic acid) Highly Concentrated Composite Hydrogels. in Abstract Book / 4th International Conference on Advanced Polymer Science and Engineering, 23-25 October, 2023, Valencia, Spain. 2023;:67-67.
https://hdl.handle.net/21.15107/rcub_cer_7403 .

Panić, Vesna, Jovanović, Jelena D., Savić, Sanja I., Marković, Maja D., Radulović, Aleksandra, Pantić, Olga, Adnađević, Borivoj K., "Insight and Comparison of Property Improvement in LTA and MFI Zeolite Reinforced Poly(methacrylic acid) Highly Concentrated Composite Hydrogels" in Abstract Book / 4th International Conference on Advanced Polymer Science and Engineering, 23-25 October, 2023, Valencia, Spain (2023):67-67,
https://hdl.handle.net/21.15107/rcub_cer_7403 .

TY  - JOUR
AU  - Adnađević, Borivoj
AU  - Mojović, Zorica
AU  - Abu Rabi, Anđela
AU  - Jovanović, Jelena D.
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4261
AB  - The kinetic parameters of the selective isothermal adsorption of ethanol from an
aqueous solution onto a hydrophobic zeolite type NaZSM-5 were determined
using a series of the so-called standard methods (the initial rate, the saturation
rate and the maximum rate methods). The kinetic model of ethanol adsorption
was determined by the “model fitting” method. The dependence of the kinetic
parameters on the degree of adsorption and the presence of a compensation effect
were determined by the isoconversional method. The complex changes of the
activation energy and pre-exponential factor with the degree of adsorption were
explained by the model of the activation energy distribution of elemental adsorption
processes.
PB  - Wiley-Blackwell
T2  - Chemical Engineering and Technology
T1  - Isoconversional Kinetic Analysis of Isothermal Selective Ethanol Adsorption on Zeolite Type NaZSM-5
VL  - 30
IS  - 9
SP  - 1228
EP  - 1234
DO  - 10.1002/ceat.200700147
ER  - 

@article{
author = "Adnađević, Borivoj and Mojović, Zorica and Abu Rabi, Anđela and Jovanović, Jelena D.",
year = "2007",
abstract = "The kinetic parameters of the selective isothermal adsorption of ethanol from an
aqueous solution onto a hydrophobic zeolite type NaZSM-5 were determined
using a series of the so-called standard methods (the initial rate, the saturation
rate and the maximum rate methods). The kinetic model of ethanol adsorption
was determined by the “model fitting” method. The dependence of the kinetic
parameters on the degree of adsorption and the presence of a compensation effect
were determined by the isoconversional method. The complex changes of the
activation energy and pre-exponential factor with the degree of adsorption were
explained by the model of the activation energy distribution of elemental adsorption
processes.",
publisher = "Wiley-Blackwell",
journal = "Chemical Engineering and Technology",
title = "Isoconversional Kinetic Analysis of Isothermal Selective Ethanol Adsorption on Zeolite Type NaZSM-5",
volume = "30",
number = "9",
pages = "1228-1234",
doi = "10.1002/ceat.200700147"
}

Adnađević, B., Mojović, Z., Abu Rabi, A.,& Jovanović, J. D.. (2007). Isoconversional Kinetic Analysis of Isothermal Selective Ethanol Adsorption on Zeolite Type NaZSM-5. in Chemical Engineering and Technology
Wiley-Blackwell., 30(9), 1228-1234.
https://doi.org/10.1002/ceat.200700147

Adnađević B, Mojović Z, Abu Rabi A, Jovanović JD. Isoconversional Kinetic Analysis of Isothermal Selective Ethanol Adsorption on Zeolite Type NaZSM-5. in Chemical Engineering and Technology. 2007;30(9):1228-1234.
doi:10.1002/ceat.200700147 .

Adnađević, Borivoj, Mojović, Zorica, Abu Rabi, Anđela, Jovanović, Jelena D., "Isoconversional Kinetic Analysis of Isothermal Selective Ethanol Adsorption on Zeolite Type NaZSM-5" in Chemical Engineering and Technology, 30, no. 9 (2007):1228-1234,
https://doi.org/10.1002/ceat.200700147 . .

TY  - JOUR
AU  - Dvornić, Petar R.
AU  - Govedarica, Milutin
AU  - Jovanović, Jelena D.
AU  - Gerov, Vesna V.
AU  - Antić, Mališa
PY  - 1995
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3481
AB  - A new general procedure for preparation of functionalized oligopolysiloxanes of predetermined molecular weight is described. It utilizes heterogeneously catalyzed siloxane equilibration polymerization reactions which do not require troublesome and sometimes difficult post-preparative work-up procedures usually encountered with the well known homogeneously catalyzed corresponding reactions. The method is described using as example the preparation of α, ω-telechelic vinyldimethylsiloxy-oligopolydimethylsiloxanes from octamethylcyclotetrasiloxane and 1,3-divinyltetramethyldisiloxane, but reference to the preparations of trimethylsiloxy-, dimethylsiloxy-and carboxypropyldimethylsiloxyoligopolydimethylsiloxanes, oligopolymethylhydridosiloxanes or their copolymers is also made.
PB  - Springer
T2  - Polymer Bulletin
T1  - Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions
VL  - 35
IS  - 5
SP  - 539
EP  - 545
DO  - 10.1007/BF00324106
ER  - 

@article{
author = "Dvornić, Petar R. and Govedarica, Milutin and Jovanović, Jelena D. and Gerov, Vesna V. and Antić, Mališa",
year = "1995",
abstract = "A new general procedure for preparation of functionalized oligopolysiloxanes of predetermined molecular weight is described. It utilizes heterogeneously catalyzed siloxane equilibration polymerization reactions which do not require troublesome and sometimes difficult post-preparative work-up procedures usually encountered with the well known homogeneously catalyzed corresponding reactions. The method is described using as example the preparation of α, ω-telechelic vinyldimethylsiloxy-oligopolydimethylsiloxanes from octamethylcyclotetrasiloxane and 1,3-divinyltetramethyldisiloxane, but reference to the preparations of trimethylsiloxy-, dimethylsiloxy-and carboxypropyldimethylsiloxyoligopolydimethylsiloxanes, oligopolymethylhydridosiloxanes or their copolymers is also made.",
publisher = "Springer",
journal = "Polymer Bulletin",
title = "Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions",
volume = "35",
number = "5",
pages = "539-545",
doi = "10.1007/BF00324106"
}

Dvornić, P. R., Govedarica, M., Jovanović, J. D., Gerov, V. V.,& Antić, M.. (1995). Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions. in Polymer Bulletin
Springer., 35(5), 539-545.
https://doi.org/10.1007/BF00324106

Dvornić PR, Govedarica M, Jovanović JD, Gerov VV, Antić M. Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions. in Polymer Bulletin. 1995;35(5):539-545.
doi:10.1007/BF00324106 .

Dvornić, Petar R., Govedarica, Milutin, Jovanović, Jelena D., Gerov, Vesna V., Antić, Mališa, "Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions" in Polymer Bulletin, 35, no. 5 (1995):539-545,
https://doi.org/10.1007/BF00324106 . .