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.
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
UR - conv_2495
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",
url = "conv_2495"
}
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
conv_2495
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
conv_2495 .
