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Determination of thermodynamic interactions of poly(l-lactide) and biphasic calcium phosphate/poly(l-lactide) composite by inverse gas chromatography at infinite dilution

Authorized Users Only
2014
Authors
Nastasović, Aleksandra
Ignjatović, Nenad
Uskoković, Dragan
Marković, Dana
Ekmeščić, Bojana
Maksin, Danijela
Onjia, Antonije
Article (Published version)
Metadata
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Abstract
Inverse gas chromatography at infinite dilution was applied to determine the thermodynamic interactions of poly(l-lactide) (PLLA) and the composite of biphasic calcium phosphate and PLLA (BCP/PLLA). The specific retention volumes, V0g , of 11 organic compounds of different chemical nature and polarity (non-polar, donor or acceptor) were determined in the temperature range of 308–378 K for PLLA and 308–398 K for BCP/PLLA. The weight fraction activity coefficients of test sorbates, Ω∞1 , and the Flory–Huggins interaction parameters, χ∞12 , were estimated and discussed in terms of interactions of the sorbates with PLLA and BCP/PLLA. Also, the partial molar free energy, ΔG∞1 , the partial molar heat of mixing, ΔH∞1 , the sorption molar free energy, ΔGS1 , the sorption enthalpy, ΔHS1 , and the sorption entropy, ΔSS1 , were analyzed. A different chromatographic behavior of the two investigated samples, PLLA and BCP/PLLA, was observed. The values of Ω∞1 indicated n-alkanes, diethyl ether, tet...rahydrofurane (THF), cyclohexane, benzene, dioxane (except for 338 K), and ethyl acetate (EtAc) (except for 338 K) as non-solvents, and chloroform (CHCl3) as good solvent (except for 378 K) for PLLA. For BCP/PLLA, CHCl3, EtAc (for 378 K), dioxane (except for 378 K), and THF were indicated as good solvents.

Keywords:
inverse gas chromatography / poly(l-lactide) / biphasic calcium phosphate / composite materials
Source:
Journal of Materials Science, 2014, 49, 14, 5076-5086
Publisher:
  • Springer US
Funding / projects:
  • Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them (RS-45004)
  • Advanced technologies for monitoring and environmental protection from chemical pollutants and radiation burden (RS-43009)

DOI: 10.1007/s10853-014-8214-3

ISSN: 0022-2461 (Print); 1573-4803 (Online)

WoS: 000335451700041

Scopus: 2-s2.0-84900419171
[ Google Scholar ]
6
3
Handle
https://hdl.handle.net/21.15107/rcub_dais_555
URI
https://dais.sanu.ac.rs/123456789/555
Collections
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - JOUR
AU  - Nastasović, Aleksandra
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
AU  - Marković, Dana
AU  - Ekmeščić, Bojana
AU  - Maksin, Danijela
AU  - Onjia, Antonije
PY  - 2014
UR  - https://dais.sanu.ac.rs/123456789/555
AB  - Inverse gas chromatography at infinite dilution was applied to determine the thermodynamic interactions of poly(l-lactide) (PLLA) and the composite of biphasic calcium phosphate and PLLA (BCP/PLLA). The specific retention volumes, V0g , of 11 organic compounds of different chemical nature and polarity (non-polar, donor or acceptor) were determined in the temperature range of 308–378 K for PLLA and 308–398 K for BCP/PLLA. The weight fraction activity coefficients of test sorbates, Ω∞1 , and the Flory–Huggins interaction parameters, χ∞12 , were estimated and discussed in terms of interactions of the sorbates with PLLA and BCP/PLLA. Also, the partial molar free energy, ΔG∞1 , the partial molar heat of mixing, ΔH∞1 , the sorption molar free energy, ΔGS1 , the sorption enthalpy, ΔHS1 , and the sorption entropy, ΔSS1 , were analyzed. A different chromatographic behavior of the two investigated samples, PLLA and BCP/PLLA, was observed. The values of Ω∞1 indicated n-alkanes, diethyl ether, tetrahydrofurane (THF), cyclohexane, benzene, dioxane (except for 338 K), and ethyl acetate (EtAc) (except for 338 K) as non-solvents, and chloroform (CHCl3) as good solvent (except for 378 K) for PLLA. For BCP/PLLA, CHCl3, EtAc (for 378 K), dioxane (except for 378 K), and THF were indicated as good solvents.
PB  - Springer US
T2  - Journal of Materials Science
T1  - Determination of thermodynamic interactions of poly(l-lactide) and biphasic calcium phosphate/poly(l-lactide) composite by inverse gas chromatography at infinite dilution
SP  - 5076
EP  - 5086
VL  - 49
IS  - 14
DO  - 10.1007/s10853-014-8214-3
UR  - https://hdl.handle.net/21.15107/rcub_dais_555
ER  - 
@article{
author = "Nastasović, Aleksandra and Ignjatović, Nenad and Uskoković, Dragan and Marković, Dana and Ekmeščić, Bojana and Maksin, Danijela and Onjia, Antonije",
year = "2014",
abstract = "Inverse gas chromatography at infinite dilution was applied to determine the thermodynamic interactions of poly(l-lactide) (PLLA) and the composite of biphasic calcium phosphate and PLLA (BCP/PLLA). The specific retention volumes, V0g , of 11 organic compounds of different chemical nature and polarity (non-polar, donor or acceptor) were determined in the temperature range of 308–378 K for PLLA and 308–398 K for BCP/PLLA. The weight fraction activity coefficients of test sorbates, Ω∞1 , and the Flory–Huggins interaction parameters, χ∞12 , were estimated and discussed in terms of interactions of the sorbates with PLLA and BCP/PLLA. Also, the partial molar free energy, ΔG∞1 , the partial molar heat of mixing, ΔH∞1 , the sorption molar free energy, ΔGS1 , the sorption enthalpy, ΔHS1 , and the sorption entropy, ΔSS1 , were analyzed. A different chromatographic behavior of the two investigated samples, PLLA and BCP/PLLA, was observed. The values of Ω∞1 indicated n-alkanes, diethyl ether, tetrahydrofurane (THF), cyclohexane, benzene, dioxane (except for 338 K), and ethyl acetate (EtAc) (except for 338 K) as non-solvents, and chloroform (CHCl3) as good solvent (except for 378 K) for PLLA. For BCP/PLLA, CHCl3, EtAc (for 378 K), dioxane (except for 378 K), and THF were indicated as good solvents.",
publisher = "Springer US",
journal = "Journal of Materials Science",
title = "Determination of thermodynamic interactions of poly(l-lactide) and biphasic calcium phosphate/poly(l-lactide) composite by inverse gas chromatography at infinite dilution",
pages = "5076-5086",
volume = "49",
number = "14",
doi = "10.1007/s10853-014-8214-3",
url = "https://hdl.handle.net/21.15107/rcub_dais_555"
}
Nastasović, A., Ignjatović, N., Uskoković, D., Marković, D., Ekmeščić, B., Maksin, D.,& Onjia, A.. (2014). Determination of thermodynamic interactions of poly(l-lactide) and biphasic calcium phosphate/poly(l-lactide) composite by inverse gas chromatography at infinite dilution. in Journal of Materials Science
Springer US., 49(14), 5076-5086.
https://doi.org/10.1007/s10853-014-8214-3
https://hdl.handle.net/21.15107/rcub_dais_555
Nastasović A, Ignjatović N, Uskoković D, Marković D, Ekmeščić B, Maksin D, Onjia A. Determination of thermodynamic interactions of poly(l-lactide) and biphasic calcium phosphate/poly(l-lactide) composite by inverse gas chromatography at infinite dilution. in Journal of Materials Science. 2014;49(14):5076-5086.
doi:10.1007/s10853-014-8214-3
https://hdl.handle.net/21.15107/rcub_dais_555 .
Nastasović, Aleksandra, Ignjatović, Nenad, Uskoković, Dragan, Marković, Dana, Ekmeščić, Bojana, Maksin, Danijela, Onjia, Antonije, "Determination of thermodynamic interactions of poly(l-lactide) and biphasic calcium phosphate/poly(l-lactide) composite by inverse gas chromatography at infinite dilution" in Journal of Materials Science, 49, no. 14 (2014):5076-5086,
https://doi.org/10.1007/s10853-014-8214-3 .,
https://hdl.handle.net/21.15107/rcub_dais_555 .

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