Determination of thermodynamic interactions of polylactide and biphasic calcium phosphate/polylactidecomposite by inverse gas chromatography at infinite dilution
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2014
Authors
Nastasović, AleksandraIgnjatović, Nenad
Uskoković, Dragan
Marković, Dana D.
Ekmeščić, Bojana
Maksin, Danijela
Onjia, Antonije
Article (Published version)
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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, , 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, , and the Flory-Huggins interaction parameters, , were estimated and discussed in terms of interactions of the sorbates with PLLA and BCP/PLLA. Also, the partial molar free energy, , the partial molar heat of mixing, , the sorption molar free energy, , the sorption enthalpy, , and the sorption entropy, , were analyzed. A different chromatographic behavior of the two investigated samples, PLLA and BCP/PLLA, was observed. The values of 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.
Source:
Journal of Materials Science, 2014, 49, 14, 5076-5086Publisher:
- Springer, New York
Funding / projects:
- Advanced technologies for monitoring and environmental protection from chemical pollutants and radiation burden (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
- Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45004)
DOI: 10.1007/s10853-014-8214-3
ISSN: 0022-2461
WoS: 000335451700041
Scopus: 2-s2.0-84900419171
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Nastasović, Aleksandra AU - Ignjatović, Nenad AU - Uskoković, Dragan AU - Marković, Dana D. AU - Ekmeščić, Bojana AU - Maksin, Danijela AU - Onjia, Antonije PY - 2014 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2822 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, , 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, , and the Flory-Huggins interaction parameters, , were estimated and discussed in terms of interactions of the sorbates with PLLA and BCP/PLLA. Also, the partial molar free energy, , the partial molar heat of mixing, , the sorption molar free energy, , the sorption enthalpy, , and the sorption entropy, , were analyzed. A different chromatographic behavior of the two investigated samples, PLLA and BCP/PLLA, was observed. The values of 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, New York T2 - Journal of Materials Science T1 - Determination of thermodynamic interactions of polylactide and biphasic calcium phosphate/polylactidecomposite by inverse gas chromatography at infinite dilution EP - 5086 IS - 14 SP - 5076 VL - 49 DO - 10.1007/s10853-014-8214-3 ER -
@article{ author = "Nastasović, Aleksandra and Ignjatović, Nenad and Uskoković, Dragan and Marković, Dana D. 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, , 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, , and the Flory-Huggins interaction parameters, , were estimated and discussed in terms of interactions of the sorbates with PLLA and BCP/PLLA. Also, the partial molar free energy, , the partial molar heat of mixing, , the sorption molar free energy, , the sorption enthalpy, , and the sorption entropy, , were analyzed. A different chromatographic behavior of the two investigated samples, PLLA and BCP/PLLA, was observed. The values of 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, New York", journal = "Journal of Materials Science", title = "Determination of thermodynamic interactions of polylactide and biphasic calcium phosphate/polylactidecomposite by inverse gas chromatography at infinite dilution", pages = "5086-5076", number = "14", volume = "49", doi = "10.1007/s10853-014-8214-3" }
Nastasović, A., Ignjatović, N., Uskoković, D., Marković, D. D., Ekmeščić, B., Maksin, D.,& Onjia, A.. (2014). Determination of thermodynamic interactions of polylactide and biphasic calcium phosphate/polylactidecomposite by inverse gas chromatography at infinite dilution. in Journal of Materials Science Springer, New York., 49(14), 5076-5086. https://doi.org/10.1007/s10853-014-8214-3
Nastasović A, Ignjatović N, Uskoković D, Marković DD, Ekmeščić B, Maksin D, Onjia A. Determination of thermodynamic interactions of polylactide and biphasic calcium phosphate/polylactidecomposite by inverse gas chromatography at infinite dilution. in Journal of Materials Science. 2014;49(14):5076-5086. doi:10.1007/s10853-014-8214-3 .
Nastasović, Aleksandra, Ignjatović, Nenad, Uskoković, Dragan, Marković, Dana D., Ekmeščić, Bojana, Maksin, Danijela, Onjia, Antonije, "Determination of thermodynamic interactions of polylactide and biphasic calcium phosphate/polylactidecomposite 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 . .