Marković, Dana

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  • Marković, Dana (1)
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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

Nastasović, Aleksandra; Ignjatović, Nenad; Uskoković, Dragan; Marković, Dana; Ekmeščić, Bojana; Maksin, Danijela; Onjia, Antonije

(Springer US, 2014)

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  - http://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
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",
url = "http://dais.sanu.ac.rs/123456789/555",
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"
}
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.
Journal of Materials Science
Springer US., 49(14), 5076-5086.
https://doi.org/10.1007/s10853-014-8214-3
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. Journal of Materials Science. 2014;49(14):5076-5086
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" Journal of Materials Science, 49, no. 14 (2014):5076-5086,
https://doi.org/10.1007/s10853-014-8214-3 .
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