TY  - JOUR
AU  - Marinović, Sanja
AU  - Popović, Ivanka
AU  - Dunjić, Branko
AU  - Tasić, S.
AU  - Božić, B.
AU  - Jovanović, Dušan M.
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1583
AB  - The aim of this study was to investigate the influence of different components of interpenetrating polymer networks (IPNs) on their behavior in dual curing automotive applications. Dual curing is one of possible ways to obtain fast curing, scratch resistant coatings for use in OEM and car refinish applications. Dual curing systems, upon hardening, represent interpenetrating networks (IPNs) [1]. IPN's were obtained using novel acrylate-terminated hyperbranched polyester with high functionality and compared to classical 2-pack polyurethane clear coat. In our previous manuscript [1] we investigated the influence of the acrylated hyperbranched polyester (HBP(A)) content in dual curing systems. In this article we studied the influence of the reactive diluent on dual curing compositions. To this end, we have chosen IPN with 50/50 weigth ratio of polyurethane (PU) and polyacrylic (PA) component. In order to determine more clearly the role of the HBP(A) in one IPN HBP(A) was changed with hexane diol diacrylate (HDDA), keeping the same ratio with EHA. The IPNs were characterized by dynamic-mechanical analysis (DMA), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The mechanical properties of the IPNs were also investigated. The IPN with HDDA as reactive diluent, had the best performance. IPN with H BP(A) had the highest glass transition temperature Tg and the highest crosslink density, but it did not have the highest hardness.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - The influence of different components on interpenetrating polymer network's (IPN's) characteristics as automotive top coats
EP  - 298
IS  - 4
SP  - 293
VL  - 68
DO  - 10.1016/j.porgcoat.2010.03.010
ER  - 

@article{
author = "Marinović, Sanja and Popović, Ivanka and Dunjić, Branko and Tasić, S. and Božić, B. and Jovanović, Dušan M.",
year = "2010",
abstract = "The aim of this study was to investigate the influence of different components of interpenetrating polymer networks (IPNs) on their behavior in dual curing automotive applications. Dual curing is one of possible ways to obtain fast curing, scratch resistant coatings for use in OEM and car refinish applications. Dual curing systems, upon hardening, represent interpenetrating networks (IPNs) [1]. IPN's were obtained using novel acrylate-terminated hyperbranched polyester with high functionality and compared to classical 2-pack polyurethane clear coat. In our previous manuscript [1] we investigated the influence of the acrylated hyperbranched polyester (HBP(A)) content in dual curing systems. In this article we studied the influence of the reactive diluent on dual curing compositions. To this end, we have chosen IPN with 50/50 weigth ratio of polyurethane (PU) and polyacrylic (PA) component. In order to determine more clearly the role of the HBP(A) in one IPN HBP(A) was changed with hexane diol diacrylate (HDDA), keeping the same ratio with EHA. The IPNs were characterized by dynamic-mechanical analysis (DMA), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The mechanical properties of the IPNs were also investigated. The IPN with HDDA as reactive diluent, had the best performance. IPN with H BP(A) had the highest glass transition temperature Tg and the highest crosslink density, but it did not have the highest hardness.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "The influence of different components on interpenetrating polymer network's (IPN's) characteristics as automotive top coats",
pages = "298-293",
number = "4",
volume = "68",
doi = "10.1016/j.porgcoat.2010.03.010"
}

Marinović, S., Popović, I., Dunjić, B., Tasić, S., Božić, B.,& Jovanović, D. M.. (2010). The influence of different components on interpenetrating polymer network's (IPN's) characteristics as automotive top coats. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 68(4), 293-298.
https://doi.org/10.1016/j.porgcoat.2010.03.010

Marinović S, Popović I, Dunjić B, Tasić S, Božić B, Jovanović DM. The influence of different components on interpenetrating polymer network's (IPN's) characteristics as automotive top coats. in Progress in Organic Coatings. 2010;68(4):293-298.
doi:10.1016/j.porgcoat.2010.03.010 .

Marinović, Sanja, Popović, Ivanka, Dunjić, Branko, Tasić, S., Božić, B., Jovanović, Dušan M., "The influence of different components on interpenetrating polymer network's (IPN's) characteristics as automotive top coats" in Progress in Organic Coatings, 68, no. 4 (2010):293-298,
https://doi.org/10.1016/j.porgcoat.2010.03.010 . .

TY  - JOUR
AU  - Džunuzović, Enis
AU  - Tasić, S.
AU  - Božić, B.
AU  - Jeremić, Katarina B.
AU  - Dunjić, Branko
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1005
AB  - Urethane acrylate resins based on partially modified aliphatic hyperbranched polyesters (HBP) were synthesized. HBP of the second and the third pseudo-generation were synthesized from 2,2-bis(hydroxymethyl)propionic acid and di-trimethylol propane. The modification of 60% of the OH end-groups was carried out with isononanoic acid. Urethane acrylates with different degrees of acrylation were obtained by reaction of partially modified HBP and different amounts of acrylate-isocyanate adduct (NCO), which had been previously obtained by reaction of equimolar amounts of isophorone diisocyanate and 2-hydroxyethyl acrylate. The synthesized samples were characterized by FT-IR, H-1 and C-13 NMR spectroscopy and GPC. The rheological properties of uncured samples and the mechanical and thermal properties of UV cured urethane acrylates diluted with 20 wt.% hexanediol diacrylate were examined. The modification of the OH end-groups with isononanoic acid caused a rapid decrease in the viscosity of the HBPs. The examined properties of the urethane acrylates mainly depended on the degree of acrylation.
PB  - Elsevier, Amsterdam
T2  - Reactive & Functional Polymers
T1  - Photoreactive hyperbranched urethane acrylates modified with a branched saturated fatty acid
EP  - 1105
IS  - 10
SP  - 1097
VL  - 66
DO  - 10.1016/j.reactfunctpolym.2006.01.016
ER  - 

@article{
author = "Džunuzović, Enis and Tasić, S. and Božić, B. and Jeremić, Katarina B. and Dunjić, Branko",
year = "2006",
abstract = "Urethane acrylate resins based on partially modified aliphatic hyperbranched polyesters (HBP) were synthesized. HBP of the second and the third pseudo-generation were synthesized from 2,2-bis(hydroxymethyl)propionic acid and di-trimethylol propane. The modification of 60% of the OH end-groups was carried out with isononanoic acid. Urethane acrylates with different degrees of acrylation were obtained by reaction of partially modified HBP and different amounts of acrylate-isocyanate adduct (NCO), which had been previously obtained by reaction of equimolar amounts of isophorone diisocyanate and 2-hydroxyethyl acrylate. The synthesized samples were characterized by FT-IR, H-1 and C-13 NMR spectroscopy and GPC. The rheological properties of uncured samples and the mechanical and thermal properties of UV cured urethane acrylates diluted with 20 wt.% hexanediol diacrylate were examined. The modification of the OH end-groups with isononanoic acid caused a rapid decrease in the viscosity of the HBPs. The examined properties of the urethane acrylates mainly depended on the degree of acrylation.",
publisher = "Elsevier, Amsterdam",
journal = "Reactive & Functional Polymers",
title = "Photoreactive hyperbranched urethane acrylates modified with a branched saturated fatty acid",
pages = "1105-1097",
number = "10",
volume = "66",
doi = "10.1016/j.reactfunctpolym.2006.01.016"
}

Džunuzović, E., Tasić, S., Božić, B., Jeremić, K. B.,& Dunjić, B.. (2006). Photoreactive hyperbranched urethane acrylates modified with a branched saturated fatty acid. in Reactive & Functional Polymers
Elsevier, Amsterdam., 66(10), 1097-1105.
https://doi.org/10.1016/j.reactfunctpolym.2006.01.016

Džunuzović E, Tasić S, Božić B, Jeremić KB, Dunjić B. Photoreactive hyperbranched urethane acrylates modified with a branched saturated fatty acid. in Reactive & Functional Polymers. 2006;66(10):1097-1105.
doi:10.1016/j.reactfunctpolym.2006.01.016 .

Džunuzović, Enis, Tasić, S., Božić, B., Jeremić, Katarina B., Dunjić, Branko, "Photoreactive hyperbranched urethane acrylates modified with a branched saturated fatty acid" in Reactive & Functional Polymers, 66, no. 10 (2006):1097-1105,
https://doi.org/10.1016/j.reactfunctpolym.2006.01.016 . .

TY  - JOUR
AU  - Džunuzović, Enis
AU  - Tasić, S
AU  - Božić, B
AU  - Babić, Dragan
AU  - Dunjić, Branko
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/750
AB  - Urethane acrylate resins based on partially modified aliphatic hyperbranched polyesters (HBP) have been synthesized. HBP of the second and the third generation were synthesized from 2,2-bis(hydroxymethyl)propionic acid and di-trimethylol propane. The modification of certain amount of OH end-groups was carried out with soybean fatty acids. The urethane acrylates with different degrees of acrylation have been obtained by reaction of partially modified HBP and different amounts of NCO adduct which had been previously obtained by reaction of equimolar amounts of isophorone diisocyanate and 2-hydroxyethyl acrylate. The synthesized samples were characterized by FT-IR,H-1 and C-13 NMR and GPC. The theological properties of uncured samples and mechanical and thermal properties of UV cured urethane acrylates diluted with 20 wt.% hexanediol diacrylate were examined. The modification of OH end-groups with soybean fatty acids causes a rapid decrease in viscosity of HBP. The examined properties of urethane acrylates depend on the degree of acrylation. After irradiating, the additional cross-linking, which is caused by reaction of double bonds from unsaturated fatty acids, has also important effect on the properties of cured samples.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - UV-curable hyperbranched urethane acrylate oligomers containing soybean fatty acids
EP  - 143
IS  - 2
SP  - 136
VL  - 52
DO  - 10.1016/j.porgcoat.2004.10.003
ER  - 

@article{
author = "Džunuzović, Enis and Tasić, S and Božić, B and Babić, Dragan and Dunjić, Branko",
year = "2005",
abstract = "Urethane acrylate resins based on partially modified aliphatic hyperbranched polyesters (HBP) have been synthesized. HBP of the second and the third generation were synthesized from 2,2-bis(hydroxymethyl)propionic acid and di-trimethylol propane. The modification of certain amount of OH end-groups was carried out with soybean fatty acids. The urethane acrylates with different degrees of acrylation have been obtained by reaction of partially modified HBP and different amounts of NCO adduct which had been previously obtained by reaction of equimolar amounts of isophorone diisocyanate and 2-hydroxyethyl acrylate. The synthesized samples were characterized by FT-IR,H-1 and C-13 NMR and GPC. The theological properties of uncured samples and mechanical and thermal properties of UV cured urethane acrylates diluted with 20 wt.% hexanediol diacrylate were examined. The modification of OH end-groups with soybean fatty acids causes a rapid decrease in viscosity of HBP. The examined properties of urethane acrylates depend on the degree of acrylation. After irradiating, the additional cross-linking, which is caused by reaction of double bonds from unsaturated fatty acids, has also important effect on the properties of cured samples.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "UV-curable hyperbranched urethane acrylate oligomers containing soybean fatty acids",
pages = "143-136",
number = "2",
volume = "52",
doi = "10.1016/j.porgcoat.2004.10.003"
}

Džunuzović, E., Tasić, S., Božić, B., Babić, D.,& Dunjić, B.. (2005). UV-curable hyperbranched urethane acrylate oligomers containing soybean fatty acids. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 52(2), 136-143.
https://doi.org/10.1016/j.porgcoat.2004.10.003

Džunuzović E, Tasić S, Božić B, Babić D, Dunjić B. UV-curable hyperbranched urethane acrylate oligomers containing soybean fatty acids. in Progress in Organic Coatings. 2005;52(2):136-143.
doi:10.1016/j.porgcoat.2004.10.003 .

Džunuzović, Enis, Tasić, S, Božić, B, Babić, Dragan, Dunjić, Branko, "UV-curable hyperbranched urethane acrylate oligomers containing soybean fatty acids" in Progress in Organic Coatings, 52, no. 2 (2005):136-143,
https://doi.org/10.1016/j.porgcoat.2004.10.003 . .

TY  - JOUR
AU  - Tasić, S
AU  - Božić, B
AU  - Dunjić, Branko
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/691
AB  - Three series of hyperbranched urethane-acrylates (HB-UA), based on aliphatic hyperbranched polyesters and polyethyleneglycol acrylate, were prepared and evaluated for use in UV-curable coatings. UV-curing kinetics were monitored by FT-IR spectroscopy. The thermal and mechanical properties of UV-cured HB-UA were investigated by means of differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) and correlated to the mechanical properties of coatings (hardness and flexibility). These new HB-UA's are very reactive and did not show oxygen inhibition. Obtained coatings have good mechanical properties and solvent resistance.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - Synthesis of new hyperbranched urethane-acrylates and their evaluation in UV-curable coatings
EP  - 328
IS  - 4
SP  - 321
VL  - 51
DO  - 10.1016/j.porgcoat.2004.07.021
ER  - 

@article{
author = "Tasić, S and Božić, B and Dunjić, Branko",
year = "2004",
abstract = "Three series of hyperbranched urethane-acrylates (HB-UA), based on aliphatic hyperbranched polyesters and polyethyleneglycol acrylate, were prepared and evaluated for use in UV-curable coatings. UV-curing kinetics were monitored by FT-IR spectroscopy. The thermal and mechanical properties of UV-cured HB-UA were investigated by means of differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) and correlated to the mechanical properties of coatings (hardness and flexibility). These new HB-UA's are very reactive and did not show oxygen inhibition. Obtained coatings have good mechanical properties and solvent resistance.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "Synthesis of new hyperbranched urethane-acrylates and their evaluation in UV-curable coatings",
pages = "328-321",
number = "4",
volume = "51",
doi = "10.1016/j.porgcoat.2004.07.021"
}

Tasić, S., Božić, B.,& Dunjić, B.. (2004). Synthesis of new hyperbranched urethane-acrylates and their evaluation in UV-curable coatings. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 51(4), 321-328.
https://doi.org/10.1016/j.porgcoat.2004.07.021

Tasić S, Božić B, Dunjić B. Synthesis of new hyperbranched urethane-acrylates and their evaluation in UV-curable coatings. in Progress in Organic Coatings. 2004;51(4):321-328.
doi:10.1016/j.porgcoat.2004.07.021 .

Tasić, S, Božić, B, Dunjić, Branko, "Synthesis of new hyperbranched urethane-acrylates and their evaluation in UV-curable coatings" in Progress in Organic Coatings, 51, no. 4 (2004):321-328,
https://doi.org/10.1016/j.porgcoat.2004.07.021 . .

TY  - JOUR
AU  - Džunuzović, Enis
AU  - Tasić, S
AU  - Božić, B
AU  - Babić, Dragan
AU  - Dunjić, Branko
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/705
AB  - A series of acrylate functionalized samples based on hyperbranched hydroxy-terminated polyesters with different molecular weights and different degrees of acrylation were synthesized. The obtained urethane acrylates were slightly yellow viscose liquids. Their composition characterized by FTIR and H-1-NMR spectroscopy and their molecular weights were measured by GPC. All the synthesized samples were diluted with 25 wt.% 1.4-butanediol dimethacrylate (BDDM). The rheological properties of the uncured samples and the dynamic mechanical properties of the UV cured samples were examined. All the samples exhibit Newtonian behavior, which indicates the absence of physical entanglements in these polymers. The viscosity increases with increasing number of acrylic groups per molecule. The glass transition temperature of the UV cured samples increases with increasing the number of acrylic groups per molecule. The value of the storage modulus in the rubber-elastic plateau and the cross-link density increase with increasing number of acrylic groups per molecule. The formed networks are inhomogeneous and the residual unsaturation is the highest in the samples with the largest number of acrylic groups per molecule.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Dynamical mechanical analysis of photocrosslinked hyperbranched urethane acrylates
EP  - 453
IS  - 6
SP  - 441
VL  - 69
DO  - 10.2298/JSC0406441D
ER  - 

@article{
author = "Džunuzović, Enis and Tasić, S and Božić, B and Babić, Dragan and Dunjić, Branko",
year = "2004",
abstract = "A series of acrylate functionalized samples based on hyperbranched hydroxy-terminated polyesters with different molecular weights and different degrees of acrylation were synthesized. The obtained urethane acrylates were slightly yellow viscose liquids. Their composition characterized by FTIR and H-1-NMR spectroscopy and their molecular weights were measured by GPC. All the synthesized samples were diluted with 25 wt.% 1.4-butanediol dimethacrylate (BDDM). The rheological properties of the uncured samples and the dynamic mechanical properties of the UV cured samples were examined. All the samples exhibit Newtonian behavior, which indicates the absence of physical entanglements in these polymers. The viscosity increases with increasing number of acrylic groups per molecule. The glass transition temperature of the UV cured samples increases with increasing the number of acrylic groups per molecule. The value of the storage modulus in the rubber-elastic plateau and the cross-link density increase with increasing number of acrylic groups per molecule. The formed networks are inhomogeneous and the residual unsaturation is the highest in the samples with the largest number of acrylic groups per molecule.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Dynamical mechanical analysis of photocrosslinked hyperbranched urethane acrylates",
pages = "453-441",
number = "6",
volume = "69",
doi = "10.2298/JSC0406441D"
}

Džunuzović, E., Tasić, S., Božić, B., Babić, D.,& Dunjić, B.. (2004). Dynamical mechanical analysis of photocrosslinked hyperbranched urethane acrylates. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 69(6), 441-453.
https://doi.org/10.2298/JSC0406441D

Džunuzović E, Tasić S, Božić B, Babić D, Dunjić B. Dynamical mechanical analysis of photocrosslinked hyperbranched urethane acrylates. in Journal of the Serbian Chemical Society. 2004;69(6):441-453.
doi:10.2298/JSC0406441D .

Džunuzović, Enis, Tasić, S, Božić, B, Babić, Dragan, Dunjić, Branko, "Dynamical mechanical analysis of photocrosslinked hyperbranched urethane acrylates" in Journal of the Serbian Chemical Society, 69, no. 6 (2004):441-453,
https://doi.org/10.2298/JSC0406441D . .