Solubility Parameter of Carbon Dioxide—An Enigma

Marcus, Yizhak

doi:10.1021/acsomega.7b01665

Cited by 35 publications

(16 citation statements)

References 33 publications

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“…It was hypothesized that the HSPs of polymers do not vary significantly from those at the ambient condition since the volumetric properties of polymeric materials do not largely depend on the pressure. The Hansen distance was determined by the following equation [27]:Ra2=4(δd,2−δd,1)2+(δp,2−δp,1)2+(δh,2−δh,1)2 where δd is the energy from the dispersion force of the component, δp is the energy from the dipolar intermolecular force of the component, and δh is the energy from the hydrogen bond of the component. The Hansen distance between CO 2 and PB was closer than that between CO 2 and PET (Table 2).…”

Section: Resultsmentioning

confidence: 99%

Solid-State Foaming of Acrylonitrile-Butadiene-Styrene/Recycled Polyethylene Terephthalate Using Carbon Dioxide as a Blowing Agent

2019

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In this study, a single paragraph of acrylonitrile-butadiene-styrene (ABS)/recycled polyethylene terephthalate (R-PET) polymeric foams is prepared using CO2 as a blowing agent. First, the sorption kinetics of subcritical and supercritical CO2 are first studied at saturation temperatures from –20 to 40 °C and a pressure of 10 MPa, in order to estimate the diffusion coefficient and the sorption amount. As the sorption temperature increases, the diffusion coefficient of CO2 increases while the sorption amount decreases. Then, a series of two-step solid-state foaming experiments are conducted. In this process, a specimen is saturated with liquid CO2 and foamed by dipping the sample in a high-temperature medium at 60 to 120 °C. The effects of foaming temperature and depressurization rate on the morphology and structure of ABS/R-PET microcellular foams are examined. The mean cell size and the variation of the cell size distribution increases as the foaming temperature and the depressurization rate increases.

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Section: Resultsmentioning

confidence: 99%

Solid-State Foaming of Acrylonitrile-Butadiene-Styrene/Recycled Polyethylene Terephthalate Using Carbon Dioxide as a Blowing Agent

2019

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“…Therefore, they were calculated by the group contribution method reported by Fedors [ 30 ]. The solubility parameters in this work [ 27 , 30 , 31 ] are listed in Table 6 . The smaller the solubility parameter difference is, the better the affinity between the components.…”

Section: Resultsmentioning

confidence: 99%

Phase Behavior of a Carbon Dioxide/Methyl Trimethoxy Silane/Polystyrene Ternary System

Matsukawa

Yoda

Okawa³

et al. 2019

Polymers

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Recently, polymeric foams filled with a silica aerogel have been developed. The phase behavior of CO2/silicon alkoxide binary systems and CO2/silicon alkoxide/polymer ternary systems is an important factor that affects the design of novel processes. The phase behavior of a carbon dioxide (CO2)/methyl trimethoxy silane (MTMS)/polystyrene (PS) ternary system was measured using a synthetic method involving the observation of the bubble and cloud point. The phase boundaries were measured at temperatures ranging from 313.2 to 393.2 K and CO2 weight fractions between 0.01 and 0.08. The CO2/MTMS/PS system showed a similar CO2 mass fraction dependence of the phase behavior to that observed for the CO2/tetramethyl orthosilicate (TMOS)/PS system. When the phase boundaries of these systems were compared, the vapor-liquid (VL) and vapor-liquid-liquid (VLL) lines were found to be nearly identical, while the liquid-liquid (LL) lines were different. These results indicate that the affinity between the silicon alkoxide and polymer greatly influences the liquid-liquid phase separation.

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“…Larger molecules indicate stronger dispersion force than lighter molecule. This force is stronger between polarized molecules and weaker between the molecules that are not easily polarized [104].…”

Section: Disperation Forcementioning

confidence: 99%

Theoretical consideration of solubility by Hildebrand solubility approach

Bhamare¹,

Joshi²,

Gangurde³

et al. 2021

World J. Adv. Res. Rev.

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Pharmaceutical field is widely focusing on solubility parameter models to select solvent or non-solvent that can enhance solvency of drug. Solubility Parameter is very useful concept in understanding the mechanism of solvent and solvency behavior with their applications in pharmaceuticals to open the door of research having focus on theoretical considerations of solubility. Hildebrand and Hansen Solubility Parameter are frequently used to identify solvents.

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Solubility Parameter of Carbon Dioxide—An Enigma

Cited by 35 publications

References 33 publications

Solid-State Foaming of Acrylonitrile-Butadiene-Styrene/Recycled Polyethylene Terephthalate Using Carbon Dioxide as a Blowing Agent

Solid-State Foaming of Acrylonitrile-Butadiene-Styrene/Recycled Polyethylene Terephthalate Using Carbon Dioxide as a Blowing Agent

Phase Behavior of a Carbon Dioxide/Methyl Trimethoxy Silane/Polystyrene Ternary System

Theoretical consideration of solubility by Hildebrand solubility approach

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