TY  - JOUR
AU  - Pantić, Olga
AU  - Spasojević, Milica
AU  - Džunuzović, Enis
AU  - Nikolić, Marija S.
AU  - Savić, Sanja
AU  - Marković, Maja
AU  - Spasojević, Pavle
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5160
AB  - The scope of the present study was to prepare fully bio-based unsaturated polyester resins (UPRs) with comparable properties to the commercial formulations. The focus was set on the determination of the optimal prepolymer formulation using the same set of diacids (itaconic and succinic acid) and different diols (propylene glycol, isosorbide and neopentyl glycol) or its equimolar mixtures, keeping the fixed molar ratio of 1:1:2.1 in all feed compositions. Instead of commonly used styrene, bio-based dimethyl itaconate was used as a reactive diluent (RD). The rheology of the obtained resins was studied in detail. The effect of the used diol on structural (FTIR), thermal (DSC), thermomechanical (DMA), and mechanical (tensile) properties was explained. The properties of UPRs were found to be highly dependent on the diol used in the prepolymer formulation. The UPR with an equimolar ratio of propylene glycol and neopentyl glycol was shown to be the most promising candidate to compete with the commercial petroleum-based resins.
PB  - MDPI
T2  - Polymers
T1  - The Effect of Glycol Derivatives on the Properties of Bio-Based Unsaturated Polyesters
IS  - 15
SP  - 2970
VL  - 14
DO  - https://doi.org/10.3390/polym14152970
ER  - 

@article{
author = "Pantić, Olga and Spasojević, Milica and Džunuzović, Enis and Nikolić, Marija S. and Savić, Sanja and Marković, Maja and Spasojević, Pavle",
year = "2022",
abstract = "The scope of the present study was to prepare fully bio-based unsaturated polyester resins (UPRs) with comparable properties to the commercial formulations. The focus was set on the determination of the optimal prepolymer formulation using the same set of diacids (itaconic and succinic acid) and different diols (propylene glycol, isosorbide and neopentyl glycol) or its equimolar mixtures, keeping the fixed molar ratio of 1:1:2.1 in all feed compositions. Instead of commonly used styrene, bio-based dimethyl itaconate was used as a reactive diluent (RD). The rheology of the obtained resins was studied in detail. The effect of the used diol on structural (FTIR), thermal (DSC), thermomechanical (DMA), and mechanical (tensile) properties was explained. The properties of UPRs were found to be highly dependent on the diol used in the prepolymer formulation. The UPR with an equimolar ratio of propylene glycol and neopentyl glycol was shown to be the most promising candidate to compete with the commercial petroleum-based resins.",
publisher = "MDPI",
journal = "Polymers",
title = "The Effect of Glycol Derivatives on the Properties of Bio-Based Unsaturated Polyesters",
number = "15",
pages = "2970",
volume = "14",
doi = "https://doi.org/10.3390/polym14152970"
}

Pantić, O., Spasojević, M., Džunuzović, E., Nikolić, M. S., Savić, S., Marković, M.,& Spasojević, P.. (2022). The Effect of Glycol Derivatives on the Properties of Bio-Based Unsaturated Polyesters. in Polymers
MDPI., 14(15), 2970.
https://doi.org/https://doi.org/10.3390/polym14152970

Pantić O, Spasojević M, Džunuzović E, Nikolić MS, Savić S, Marković M, Spasojević P. The Effect of Glycol Derivatives on the Properties of Bio-Based Unsaturated Polyesters. in Polymers. 2022;14(15):2970.
doi:https://doi.org/10.3390/polym14152970 .

Pantić, Olga, Spasojević, Milica, Džunuzović, Enis, Nikolić, Marija S., Savić, Sanja, Marković, Maja, Spasojević, Pavle, "The Effect of Glycol Derivatives on the Properties of Bio-Based Unsaturated Polyesters" in Polymers, 14, no. 15 (2022):2970,
https://doi.org/https://doi.org/10.3390/polym14152970 . .

TY  - CONF
AU  - Pantić, Olga
AU  - Panić, Vesna
AU  - Savić, Sanja
AU  - Marković, Maja
AU  - Kalagasidis Krušić, Melina
AU  - Spasojević, Pavle
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5234
AB  - Replacing styrene with biobased monomers to produce fully biobased unsaturated polyester
resins (UPRs) turned out to be quite a challenging task. Styrene has been recognized as a hazardous
and a potentially carcinogenic substance for human health. Using dimethyl itaconate as an alternative reactive diluent to styrene, which can be obtained from renewable resources, enables low viscosity for easy manipulation of mentioned UPRs. Fully biobased UPRs in question were based on itaconic acid, succinic acid, and propylene glycol, which were then diluted with dimethyl itaconate.
Having in mind that UPRs can be used as a matrix for composite materials, this paper examines the
effect of different weight ratios of spent coffee grounds as a filler. To determine the application of
thus obtained composite materials, characterization consisted of examining mechanical properties
based on viscosity measurements, uniaxial stretching experiments, FTIR spectroscopy and gel content analysis.
PB  - Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) Društvo za procesnu tehniku, Beograd, Srbija
C3  - The 35rd International Congress on Processing Industry, Belgrade, Serbia
T1  - BIOBASED COMPOSITE MATERIALS OBTAINED FROM UNSATURATED POLYESTER RESINS AND WASTE COFFEE
DO  - 10.24094/ptk.022.041
ER  - 

@conference{
author = "Pantić, Olga and Panić, Vesna and Savić, Sanja and Marković, Maja and Kalagasidis Krušić, Melina and Spasojević, Pavle",
year = "2022",
abstract = "Replacing styrene with biobased monomers to produce fully biobased unsaturated polyester
resins (UPRs) turned out to be quite a challenging task. Styrene has been recognized as a hazardous
and a potentially carcinogenic substance for human health. Using dimethyl itaconate as an alternative reactive diluent to styrene, which can be obtained from renewable resources, enables low viscosity for easy manipulation of mentioned UPRs. Fully biobased UPRs in question were based on itaconic acid, succinic acid, and propylene glycol, which were then diluted with dimethyl itaconate.
Having in mind that UPRs can be used as a matrix for composite materials, this paper examines the
effect of different weight ratios of spent coffee grounds as a filler. To determine the application of
thus obtained composite materials, characterization consisted of examining mechanical properties
based on viscosity measurements, uniaxial stretching experiments, FTIR spectroscopy and gel content analysis.",
publisher = "Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) Društvo za procesnu tehniku, Beograd, Srbija",
journal = "The 35rd International Congress on Processing Industry, Belgrade, Serbia",
title = "BIOBASED COMPOSITE MATERIALS OBTAINED FROM UNSATURATED POLYESTER RESINS AND WASTE COFFEE",
doi = "10.24094/ptk.022.041"
}

Pantić, O., Panić, V., Savić, S., Marković, M., Kalagasidis Krušić, M.,& Spasojević, P.. (2022). BIOBASED COMPOSITE MATERIALS OBTAINED FROM UNSATURATED POLYESTER RESINS AND WASTE COFFEE. in The 35rd International Congress on Processing Industry, Belgrade, Serbia
Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) Društvo za procesnu tehniku, Beograd, Srbija..
https://doi.org/10.24094/ptk.022.041

Pantić O, Panić V, Savić S, Marković M, Kalagasidis Krušić M, Spasojević P. BIOBASED COMPOSITE MATERIALS OBTAINED FROM UNSATURATED POLYESTER RESINS AND WASTE COFFEE. in The 35rd International Congress on Processing Industry, Belgrade, Serbia. 2022;.
doi:10.24094/ptk.022.041 .

Pantić, Olga, Panić, Vesna, Savić, Sanja, Marković, Maja, Kalagasidis Krušić, Melina, Spasojević, Pavle, "BIOBASED COMPOSITE MATERIALS OBTAINED FROM UNSATURATED POLYESTER RESINS AND WASTE COFFEE" in The 35rd International Congress on Processing Industry, Belgrade, Serbia (2022),
https://doi.org/10.24094/ptk.022.041 . .