Biodegradable polymer-phase behavior: Liquid-liquid equilibrium of ethyl lactate and poly(lactic acid)

Rui Ferreira; Nuno Pedrosa; Isabel M. Marrucho; Luís Paulo N. Rebelo

doi:10.1021/je700576k

Biodegradable polymer-phase behavior: Liquid-liquid equilibrium of ethyl lactate and poly(lactic acid)

Rui Ferreira, Nuno Pedrosa, Isabel M. Marrucho, Luís Paulo N. Rebelo

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Liquid-liquid equilibrium data of ethyl lactate and poly(lactic acid) binary mixtures were measured at 0.1 MPa nominal pressure in the temperature range from (260 to 265) K. Cloud-point temperatures were measured using a dynamic method with visual detection of phase transitions (naked-eye determination of turbidity). This system exhibits an upper critical solution temperature (UCST) at T_c = 265.1 K and w_PLA,c = 0.03776. The experimental data were modeled with the PC-SAFT equation of state, and new parameters for both compounds within the PC-SAFT frame are provided. The model correlates well with the observed experimental data.

Original language	English
Pages (from-to)	588-590
Number of pages	3
Journal	Journal of Chemical and Engineering Data
Volume	53
Issue number	2
DOIs	https://doi.org/10.1021/je700576k
Publication status	Published - 1 Feb 2008

Keywords

Tea
Flavonoids
Green tea

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abstract = "Liquid-liquid equilibrium data of ethyl lactate and poly(lactic acid) binary mixtures were measured at 0.1 MPa nominal pressure in the temperature range from (260 to 265) K. Cloud-point temperatures were measured using a dynamic method with visual detection of phase transitions (naked-eye determination of turbidity). This system exhibits an upper critical solution temperature (UCST) at Tc = 265.1 K and wPLA,c = 0.03776. The experimental data were modeled with the PC-SAFT equation of state, and new parameters for both compounds within the PC-SAFT frame are provided. The model correlates well with the observed experimental data.",

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AU - Ferreira, Rui

AU - Pedrosa, Nuno

AU - Marrucho, Isabel M.

AU - Rebelo, Luís Paulo N.

PY - 2008/2/1

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N2 - Liquid-liquid equilibrium data of ethyl lactate and poly(lactic acid) binary mixtures were measured at 0.1 MPa nominal pressure in the temperature range from (260 to 265) K. Cloud-point temperatures were measured using a dynamic method with visual detection of phase transitions (naked-eye determination of turbidity). This system exhibits an upper critical solution temperature (UCST) at Tc = 265.1 K and wPLA,c = 0.03776. The experimental data were modeled with the PC-SAFT equation of state, and new parameters for both compounds within the PC-SAFT frame are provided. The model correlates well with the observed experimental data.

AB - Liquid-liquid equilibrium data of ethyl lactate and poly(lactic acid) binary mixtures were measured at 0.1 MPa nominal pressure in the temperature range from (260 to 265) K. Cloud-point temperatures were measured using a dynamic method with visual detection of phase transitions (naked-eye determination of turbidity). This system exhibits an upper critical solution temperature (UCST) at Tc = 265.1 K and wPLA,c = 0.03776. The experimental data were modeled with the PC-SAFT equation of state, and new parameters for both compounds within the PC-SAFT frame are provided. The model correlates well with the observed experimental data.

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Biodegradable polymer-phase behavior: Liquid-liquid equilibrium of ethyl lactate and poly(lactic acid)

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Keywords

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