Vapor–liquid equilibrium of copolymer+solvent mixtures: Thermodynamic modeling by two theoretical equations of state

Arce, Pedro F.; Mattedi, Silvana; Aznar, Martı́n

doi:10.1016/j.fluid.2006.05.009

Cited by 8 publications

(4 citation statements)

References 36 publications

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“…Besides that, three binary interaction parameters are also necessary. 28 Two of these take into account the polymer−solvent interactions and the third interaction parameter describes the interactions between poly(α) and poly(β) segments within the copolymer (eq 4). For the phase equilibrium at high-pressure, the ϕ−ϕ approach is used where ϕ is the fugacity coefficient.…”

Section: Thermodynamics Modelingmentioning

confidence: 99%

“…For a binary mixture, poly(α- co -β) and solvent, the three pure-component parameters of solvent, poly(α), and poly(β) are necessary. Besides that, three binary interaction parameters are also necessary . Two of these take into account the polymer–solvent interactions and the third interaction parameter describes the interactions between poly(α) and poly(β) segments within the copolymer (eq ).…”

Section: Thermodynamics Modelingmentioning

confidence: 99%

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Experimental Data and Thermodynamics Modeling (PC-SAFT EoS) of the {CO₂ + Acetone + Pluronic F-127} System at High Pressures

et al. 2019

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In this study, we reported data of phase equilibria of the ternary {CO2 (1) + acetone (2) + pluronic F-127 (3)} system using the static synthetic method with a visual cell at temperatures ranging from 303 to 323 K, pressures near to 10 MPa, two concentrations of pluronic F-127 in acetone (0.01 g·cm–3 and 0.02 g·cm–3), and molar fractions varying between 0.3 to 0.9. The thermodynamic modeling using the perturbed-chain statistical associating fluid theory equation of state (PC-SAFT EoS) was capable of describing the behavior of the experimental data (liquid–vapor transitions bubble points) satisfactorily.

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Section: Thermodynamics Modelingmentioning

confidence: 99%

Section: Thermodynamics Modelingmentioning

confidence: 99%

Experimental Data and Thermodynamics Modeling (PC-SAFT EoS) of the {CO₂ + Acetone + Pluronic F-127} System at High Pressures

et al. 2019

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“…The perturbed-chain statistical associating fluid theory (PC-SAFT) equation of state has been successfully applied for the thermodynamic description of systems containing polymers and copolymers at high temperature and pressure. Several papers address the PC-SAFT equation for polymeric systems, usually presenting cloud points and other equilibrium calculations. − Therefore, the PC-SAFT equation of state is chosen to describe the EVA and LDPE systems.…”

Section: Introductionmentioning

confidence: 99%

Joule–Thomson Effect in Mixtures Containing Polymers and Copolymers

Pimentel

Guerrieri

Costa

et al. 2016

Ind. Eng. Chem. Res.

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The objective of this study is to evaluate the Joule–Thomson effect, which occurs at a valve due to the throttling process for mixtures containing polymers and copolymers. For economic and safety reasons, it is essential to know the temperature change in industrial processes due to the pressure drop in the valve. The modeling of this phenomenon in mixtures containing polymers and copolymers, however, remains a challenge for process engineers, and the literature rarely reports studies on the subject. This work proposes a model that can directly compute temperature due to the throttling process using the concept of residual enthalpy and the perturbed-chain statistical associating fluid theory equation of state, instead of solely computing the Joule–Thomson coefficient. Systems containing poly(ethylene-co-vinyl acetate) and low-density polyethylene were chosen as case studies because of the need for temperature control at the reactor outlet and separation processes. The model prediction was validated using industrial data, and deviations of approximately 2% between the model prediction and the experimental temperature indicate the efficiency of the proposed approach when describing the temperature due to the throttling of both systems that are being studied.

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“…The PC-SAFT model is based on the hard-chain reference system and thus explicitly considers the attractive interactions of chain molecules instead of those of the unbonded segments. Therefore, PC-SAFT is particularly suitable for describing polymer systems [19,61,[75][76][77][78][79][80][81][82][83][84].…”

Section: Polymer Systemsmentioning

confidence: 99%

Thermodynamic Modeling of Complex Systems

Kleiner

Tumakaka

Sadowski

Structure and Bonding

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The thermodynamic behavior of complex pure fluids and mixtures is strongly affected by specific interactions like association (hydrogen bonding) and electrostatic interactions of permanent or induced dipoles. The modeling of those systems requires a physical model that is able to explicitly account for these specific interactions. This contribution describes the state of the art in modeling of complex fluids using analytical equations of state. Many applications demonstrate that those models can successfully be applied to describe and even to predict the phase behavior of a whole variety of substances ranging from small gas molecules up to organic solvents and polymeric systems.

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Vapor–liquid equilibrium of copolymer+solvent mixtures: Thermodynamic modeling by two theoretical equations of state

Cited by 8 publications

References 36 publications

Experimental Data and Thermodynamics Modeling (PC-SAFT EoS) of the {CO₂ + Acetone + Pluronic F-127} System at High Pressures

Experimental Data and Thermodynamics Modeling (PC-SAFT EoS) of the {CO₂ + Acetone + Pluronic F-127} System at High Pressures

Joule–Thomson Effect in Mixtures Containing Polymers and Copolymers

Thermodynamic Modeling of Complex Systems

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Vapor–liquid equilibrium of copolymer+solvent mixtures: Thermodynamic modeling by two theoretical equations of state

Cited by 8 publications

References 36 publications

Experimental Data and Thermodynamics Modeling (PC-SAFT EoS) of the {CO2 + Acetone + Pluronic F-127} System at High Pressures

Experimental Data and Thermodynamics Modeling (PC-SAFT EoS) of the {CO2 + Acetone + Pluronic F-127} System at High Pressures

Joule–Thomson Effect in Mixtures Containing Polymers and Copolymers

Thermodynamic Modeling of Complex Systems

Contact Info

Product

Resources

About

Experimental Data and Thermodynamics Modeling (PC-SAFT EoS) of the {CO₂ + Acetone + Pluronic F-127} System at High Pressures

Experimental Data and Thermodynamics Modeling (PC-SAFT EoS) of the {CO₂ + Acetone + Pluronic F-127} System at High Pressures