Densities, sound velocities, and refractive indexes of (tetralin +n-decane) and thermodynamic modeling by Prigogine–Flory–Patterson model

Paredes, Márcio L.L.; Reis, Rodrigo A.; Silva, A.A.; Santos, R.N.G.; Santos, G.J.; Ribeiro, M.H.A.; Ximango, Patricia Braz

doi:10.1016/j.jct.2011.09.001

Cited by 36 publications

(29 citation statements)

References 26 publications

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“…Quanto maior a temperatura, maior a diferença de volumes livres. Quanto maior a pressão, menor a diferença de volumes livres (Paredes et al, 2012).…”

Section: Resultsunclassified

“…onde Χ 12 é um parâmetro de interação binária. Para a determinação das propriedades da mistura, são introduzidas as variáveis Φ e θ, descritas detalhadamente em Paredes et al (2012).…”

Section: Prigogine-flory-pattersonunclassified

“…O subscrito i indica propriedades do componente puro, exceto φ i e x i que significam, respectivamente, fração volumétrica de solução ideal e fração molar do componente i na mistura. A metodologia de cálculo das propriedades em excesso está descrita detalhadamente em Paredes et al (2012).…”

Section: Propriedades Em Excessounclassified

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Medida Experimental E Modelagem Termodinâmica Da Massa Específica E Da Velocidade Do Som Em Altas Pressões Para O Sistema Decalina+n-Hexadecano

Nascimento¹,

Costa²,

Paredes

et al. 2015

Anais Do XX Congresso Brasileiro De Engenharia Química

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“…Quanto maior a temperatura, maior a diferença de volumes livres. Quanto maior a pressão, menor a diferença de volumes livres (Paredes et al, 2012).…”

Section: Resultsunclassified

Section: Prigogine-flory-pattersonunclassified

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Medida Experimental E Modelagem Termodinâmica Da Massa Específica E Da Velocidade Do Som Em Altas Pressões Para O Sistema Decalina+n-Hexadecano

Nascimento¹,

Costa²,

Paredes

et al. 2015

Anais Do XX Congresso Brasileiro De Engenharia Química

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“…In another study, Paredes et al [18,19] explored the relationship between d and p in highly asymmetric hydrocarbon mixtures using an acoustic method. The internal pressure was calculated through the molar volume, isentropic compressibility coefficient (k S ), k T , and a using experimental density, speed of sound (u), and heat capacity at constant pressure (C P ), according to Eqs.…”

Section: Introductionmentioning

confidence: 99%

Solubility Parameter from an Acoustic Method: Temperature Effect and Applications to Petroleum

2020

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The thermodynamic information relating cohesive energy and internal pressure is explored in order to calculate the solubility parameter for hydrocarbons, some of its mixtures, and crude oils taking into account the effect of temperature. Singlephase data of pure hydrocarbons and some of their binary and ternary mixtures, such as speed of sound, density, and heat capacity at constant pressure, are used to adjust the proposed models. Finally, the results are compared with an experimental method recently presented by us in a previous publication. This evaluation demonstrates that the proposed methods are robust for highly saturated oils. Moreover, a general expression including SARA (percentage by weight of saturates S, aromatics A, resins R, and asphaltenes As) composition is proposed to predict the solubility parameter of oils with high content of resins and asphaltenes.

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“…The sample was then dried at 50 [136,137]. A highly diluted ink would have properties similar to its solvent.…”

Section: Atomic Force Microscopymentioning

confidence: 99%

Effect of nanodroplet ink concentration on image contrast for reverse-emulsion electrophoretic displays

Wang¹

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Reverse-emulsion electrophoretic display technology is based on an electro-responsive ink comprised of self-assembled nanodroplets dispersed in a non-polar liquid. The dye-containing nanodroplets are selectively driven toward or away from the viewing plane of a display by electric fields. The hypothesis of this study is that image contrast in a nanodroplet electrophoretic display is governed by concentration and steric effects that limit the intensity of the dark state. Simultaneously, steric effects as well as electrostatic screening can diminish whiteness in the light state. This hypothesis has been tested by multiphysics simulation of dilute species in electrostatic fields and experimental measurements of relative luminance in test displays. Concentration level was varied in a range of dilutions from full concentration (100%) to one-eighth (12.5%) and the highest contrast ratio was achieved at 25%. The test devices exhibited behavior that was similar to the saturation effects predicted by simulation, accounting for steric effects. Ink concentration showed little effect on switching time, reaching steady-state within approximately 2 seconds for all concentration levels. The hypothesis was further tested by experimentally observing the effect of driving voltage between 1 V to 8 V. The results showed no significant improvement of contrast even at higher voltage, further suggesting that concentration and steric effects dictate maximum contrast. me the opportunity to conduct research within his group but also taught me the meaning of professionalism. This thesis would not be possible without his encouragement and direction. I would also like to thank Dr. Bryning for his friendly nature, immense knowledge, and valuable discussions. He was the Ironman that provided me with the tools to make data acquisition possible. Our constant laughter was what kept my dreams and spirits high. Next, I would like to thank Dr. Maryam Mobed-Miremadi. She is one of the kindest professors. She constantly provided new ideas, guidance, and encouragement to pursue a higher education degree. To my loving friends, it has been a great journey. I enjoyed our laughter, joy, and overnight projects with less than healthy food. A very special thanks to Will Schulkins for his invaluable assistance with dynamic light scattering measurements. I offer my sincere appreciation to Remy Cromer for giving me the opportunity to work with his nanodroplet ink. Finally, I would like to dedicate this work to my parents, Danny and Viola. This thesis is tangible evidence of my appreciation for my friends and family. Thank you for never doubting my ability, for your constant support, and for your unconditional love. It has provided me strength and willpower to complete this challenge and has helped me become a better person. v

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Densities, sound velocities, and refractive indexes of (tetralin +n-decane) and thermodynamic modeling by Prigogine–Flory–Patterson model

Cited by 36 publications

References 26 publications

Medida Experimental E Modelagem Termodinâmica Da Massa Específica E Da Velocidade Do Som Em Altas Pressões Para O Sistema Decalina+n-Hexadecano

Medida Experimental E Modelagem Termodinâmica Da Massa Específica E Da Velocidade Do Som Em Altas Pressões Para O Sistema Decalina+n-Hexadecano

Solubility Parameter from an Acoustic Method: Temperature Effect and Applications to Petroleum

Effect of nanodroplet ink concentration on image contrast for reverse-emulsion electrophoretic displays

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