Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA
- Autores
- Ivanovic, Jasna; Knauer, Sandra; Fanovich, Maria Alejandra; Milovanovic, Stoja; Stamenic, Marko; Jaeger, Philip; Zizovic, Irena; Eggers, Rudolf
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The potential of supercritical carbon dioxide (scCO2) processing of polycaprolactone (PCL) and polycaprolactone-hydroxyapatite (PCL-HA) composites for obtaining functional porous scaffolds at moderate temperatures (35-40 °C) was analyzed and quantified. The effect of scCO2 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 °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 ∼200-300 μm), filler distribution and thymol impregnation yields (12-18%). This was due to the satisfactory high scCO2 solubility (0.25-0.30 g/g) and mass transfer rate (∼10-10 m2/s) in the polymer phase as well as its great plasticizing effect (-ΔTm = 26.4-27.4 °C). Higher saturation of the polymer phase with scCO2 (0.30-0.55 g/g), filler amount (20%) and thymol solubility in scCO2 (>5.5 g/kg) at pressures above 20 MPa resulted in decreased mass transfer rate and SSI efficiency.
Fil: Ivanovic, Jasna. University of Belgrade. Faculty of Technology and Metallurgy; Serbia
Fil: Knauer, Sandra. Eurotechnica; Alemania
Fil: Fanovich, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Milovanovic, Stoja. University of Belgrade. Faculty of Technology and Metallurgy; Serbia
Fil: Stamenic, Marko. University of Belgrade. Faculty of Technology and Metallurgy; Serbia
Fil: Jaeger, Philip. Eurotechnica; Alemania
Fil: Zizovic, Irena. University of Belgrade. Faculty of Technology and Metallurgy; Serbia
Fil: Eggers, Rudolf. Hamburg University of Technology; Alemania - Materia
-
Co2 Sorption Kinetics
High-Pressure Dsc
Melting Point Depression
Polycaprolactone
Polycaprolactone-Hydroxyapatite
Thymol Impregnation - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/39602
Ver los metadatos del registro completo
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Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HAIvanovic, JasnaKnauer, SandraFanovich, Maria AlejandraMilovanovic, StojaStamenic, MarkoJaeger, PhilipZizovic, IrenaEggers, RudolfCo2 Sorption KineticsHigh-Pressure DscMelting Point DepressionPolycaprolactonePolycaprolactone-HydroxyapatiteThymol Impregnationhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The potential of supercritical carbon dioxide (scCO2) processing of polycaprolactone (PCL) and polycaprolactone-hydroxyapatite (PCL-HA) composites for obtaining functional porous scaffolds at moderate temperatures (35-40 °C) was analyzed and quantified. The effect of scCO2 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 °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 ∼200-300 μm), filler distribution and thymol impregnation yields (12-18%). This was due to the satisfactory high scCO2 solubility (0.25-0.30 g/g) and mass transfer rate (∼10-10 m2/s) in the polymer phase as well as its great plasticizing effect (-ΔTm = 26.4-27.4 °C). Higher saturation of the polymer phase with scCO2 (0.30-0.55 g/g), filler amount (20%) and thymol solubility in scCO2 (>5.5 g/kg) at pressures above 20 MPa resulted in decreased mass transfer rate and SSI efficiency.Fil: Ivanovic, Jasna. University of Belgrade. Faculty of Technology and Metallurgy; SerbiaFil: Knauer, Sandra. Eurotechnica; AlemaniaFil: Fanovich, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Milovanovic, Stoja. University of Belgrade. Faculty of Technology and Metallurgy; SerbiaFil: Stamenic, Marko. University of Belgrade. Faculty of Technology and Metallurgy; SerbiaFil: Jaeger, Philip. Eurotechnica; AlemaniaFil: Zizovic, Irena. University of Belgrade. Faculty of Technology and Metallurgy; SerbiaFil: Eggers, Rudolf. Hamburg University of Technology; AlemaniaElsevier Science2016-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/39602Ivanovic, Jasna; Knauer, Sandra; Fanovich, Maria Alejandra; Milovanovic, Stoja; Stamenic, Marko; et al.; Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA; Elsevier Science; Journal of Supercritical Fluids; 107; 1-2016; 486-4980896-8446CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.supflu.2015.07.001info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0896844615300541info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:35:56Zoai:ri.conicet.gov.ar:11336/39602instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:35:56.59CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA |
title |
Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA |
spellingShingle |
Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA Ivanovic, Jasna Co2 Sorption Kinetics High-Pressure Dsc Melting Point Depression Polycaprolactone Polycaprolactone-Hydroxyapatite Thymol Impregnation |
title_short |
Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA |
title_full |
Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA |
title_fullStr |
Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA |
title_full_unstemmed |
Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA |
title_sort |
Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA |
dc.creator.none.fl_str_mv |
Ivanovic, Jasna Knauer, Sandra Fanovich, Maria Alejandra Milovanovic, Stoja Stamenic, Marko Jaeger, Philip Zizovic, Irena Eggers, Rudolf |
author |
Ivanovic, Jasna |
author_facet |
Ivanovic, Jasna Knauer, Sandra Fanovich, Maria Alejandra Milovanovic, Stoja Stamenic, Marko Jaeger, Philip Zizovic, Irena Eggers, Rudolf |
author_role |
author |
author2 |
Knauer, Sandra Fanovich, Maria Alejandra Milovanovic, Stoja Stamenic, Marko Jaeger, Philip Zizovic, Irena Eggers, Rudolf |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Co2 Sorption Kinetics High-Pressure Dsc Melting Point Depression Polycaprolactone Polycaprolactone-Hydroxyapatite Thymol Impregnation |
topic |
Co2 Sorption Kinetics High-Pressure Dsc Melting Point Depression Polycaprolactone Polycaprolactone-Hydroxyapatite Thymol Impregnation |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
The potential of supercritical carbon dioxide (scCO2) processing of polycaprolactone (PCL) and polycaprolactone-hydroxyapatite (PCL-HA) composites for obtaining functional porous scaffolds at moderate temperatures (35-40 °C) was analyzed and quantified. The effect of scCO2 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 °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 ∼200-300 μm), filler distribution and thymol impregnation yields (12-18%). This was due to the satisfactory high scCO2 solubility (0.25-0.30 g/g) and mass transfer rate (∼10-10 m2/s) in the polymer phase as well as its great plasticizing effect (-ΔTm = 26.4-27.4 °C). Higher saturation of the polymer phase with scCO2 (0.30-0.55 g/g), filler amount (20%) and thymol solubility in scCO2 (>5.5 g/kg) at pressures above 20 MPa resulted in decreased mass transfer rate and SSI efficiency. Fil: Ivanovic, Jasna. University of Belgrade. Faculty of Technology and Metallurgy; Serbia Fil: Knauer, Sandra. Eurotechnica; Alemania Fil: Fanovich, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina Fil: Milovanovic, Stoja. University of Belgrade. Faculty of Technology and Metallurgy; Serbia Fil: Stamenic, Marko. University of Belgrade. Faculty of Technology and Metallurgy; Serbia Fil: Jaeger, Philip. Eurotechnica; Alemania Fil: Zizovic, Irena. University of Belgrade. Faculty of Technology and Metallurgy; Serbia Fil: Eggers, Rudolf. Hamburg University of Technology; Alemania |
description |
The potential of supercritical carbon dioxide (scCO2) processing of polycaprolactone (PCL) and polycaprolactone-hydroxyapatite (PCL-HA) composites for obtaining functional porous scaffolds at moderate temperatures (35-40 °C) was analyzed and quantified. The effect of scCO2 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 °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 ∼200-300 μm), filler distribution and thymol impregnation yields (12-18%). This was due to the satisfactory high scCO2 solubility (0.25-0.30 g/g) and mass transfer rate (∼10-10 m2/s) in the polymer phase as well as its great plasticizing effect (-ΔTm = 26.4-27.4 °C). Higher saturation of the polymer phase with scCO2 (0.30-0.55 g/g), filler amount (20%) and thymol solubility in scCO2 (>5.5 g/kg) at pressures above 20 MPa resulted in decreased mass transfer rate and SSI efficiency. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/39602 Ivanovic, Jasna; Knauer, Sandra; Fanovich, Maria Alejandra; Milovanovic, Stoja; Stamenic, Marko; et al.; Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA; Elsevier Science; Journal of Supercritical Fluids; 107; 1-2016; 486-498 0896-8446 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/39602 |
identifier_str_mv |
Ivanovic, Jasna; Knauer, Sandra; Fanovich, Maria Alejandra; Milovanovic, Stoja; Stamenic, Marko; et al.; Supercritical CO2 sorption kinetics and thymol impregnation of PCL and PCL-HA; Elsevier Science; Journal of Supercritical Fluids; 107; 1-2016; 486-498 0896-8446 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.supflu.2015.07.001 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0896844615300541 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614378842750976 |
score |
13.070432 |