TY  - JOUR
AU  - Ivanović, Jasna
AU  - Knauer, Sandra
AU  - Fanovich, Alejandra
AU  - Milovanović, Stoja
AU  - Stamenić, Marko
AU  - Jaeger, Philip
AU  - Žižović, Irena
AU  - Eggers, Rudolf
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3407
AB  - The potential of supercritical carbon dioxide (scCO(2)) processing of polycaprolactone (Pa) and polycaprolactone-hydroxyapatite (PCL-HA) composites for obtaining functional porous scaffolds at moderate temperatures (35-40 degrees C) was analyzed and quantified. The effect of scCO(2) sorption kinetics on the swelling, foam morphology and thermal behavior of the PCL and PCL-HA composites was studied. Sorption isotherms were determined using magnetic suspension balance at 10-30 MPa and 35-40 degrees C. Influence of the pressure, HA amount (10-20%) and procedure for HA powder preparation on the sorption kinetics was discussed. Supercritical solvent impregnation (SSI) of PCL and PCL-HA with thymol was investigated as environmentally friendly way to produce functional scaffolds with controlled microstructure. Moderately high pressures (13-17 MPa) and 10% of HA were proven to be favorable for creation of the PCL scaffolds with satisfying foam microstructure (mean pore size similar to 200-300 mu m), filler distribution and thymol impregnation yields (12-18%). This was due to the satisfactory high scCO(2) solubility (0.25-0.30 g/g) and mass transfer rate (similar to 10(-10) m(2)/s) in the polymer phase as well as its great plasticizing effect (-Delta T-m = 26.4-27.4 degrees C). Higher saturation of the polymer phase with scCO(2) (0.30-0.55 g/g), filler amount (20%) and thymol solubility in scCO(2) ( gt 5.5 g/kg) at pressures above 20 MPa resulted in decreased mass transfer rate and SSI efficiency.
PB  - Elsevier, Amsterdam
T2  - Journal of Supercritical Fluids
T1  - Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA
EP  - 498
SP  - 486
VL  - 107
DO  - 10.1016/j.supflu.2015.07.001
ER  - 

@article{
author = "Ivanović, Jasna and Knauer, Sandra and Fanovich, Alejandra and Milovanović, Stoja and Stamenić, Marko and Jaeger, Philip and Žižović, Irena and Eggers, Rudolf",
year = "2016",
abstract = "The potential of supercritical carbon dioxide (scCO(2)) processing of polycaprolactone (Pa) and polycaprolactone-hydroxyapatite (PCL-HA) composites for obtaining functional porous scaffolds at moderate temperatures (35-40 degrees C) was analyzed and quantified. The effect of scCO(2) sorption kinetics on the swelling, foam morphology and thermal behavior of the PCL and PCL-HA composites was studied. Sorption isotherms were determined using magnetic suspension balance at 10-30 MPa and 35-40 degrees C. Influence of the pressure, HA amount (10-20%) and procedure for HA powder preparation on the sorption kinetics was discussed. Supercritical solvent impregnation (SSI) of PCL and PCL-HA with thymol was investigated as environmentally friendly way to produce functional scaffolds with controlled microstructure. Moderately high pressures (13-17 MPa) and 10% of HA were proven to be favorable for creation of the PCL scaffolds with satisfying foam microstructure (mean pore size similar to 200-300 mu m), filler distribution and thymol impregnation yields (12-18%). This was due to the satisfactory high scCO(2) solubility (0.25-0.30 g/g) and mass transfer rate (similar to 10(-10) m(2)/s) in the polymer phase as well as its great plasticizing effect (-Delta T-m = 26.4-27.4 degrees C). Higher saturation of the polymer phase with scCO(2) (0.30-0.55 g/g), filler amount (20%) and thymol solubility in scCO(2) ( gt 5.5 g/kg) at pressures above 20 MPa resulted in decreased mass transfer rate and SSI efficiency.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Supercritical Fluids",
title = "Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA",
pages = "498-486",
volume = "107",
doi = "10.1016/j.supflu.2015.07.001"
}

Ivanović, J., Knauer, S., Fanovich, A., Milovanović, S., Stamenić, M., Jaeger, P., Žižović, I.,& Eggers, R.. (2016). Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA. in Journal of Supercritical Fluids
Elsevier, Amsterdam., 107, 486-498.
https://doi.org/10.1016/j.supflu.2015.07.001

Ivanović J, Knauer S, Fanovich A, Milovanović S, Stamenić M, Jaeger P, Žižović I, Eggers R. Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA. in Journal of Supercritical Fluids. 2016;107:486-498.
doi:10.1016/j.supflu.2015.07.001 .

Ivanović, Jasna, Knauer, Sandra, Fanovich, Alejandra, Milovanović, Stoja, Stamenić, Marko, Jaeger, Philip, Žižović, Irena, Eggers, Rudolf, "Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA" in Journal of Supercritical Fluids, 107 (2016):486-498,
https://doi.org/10.1016/j.supflu.2015.07.001 . .