Solvent Selection for Liquid Adsorption Chromatography of Ethylene–Propylene–Diene Terpolymers by Combining Structure–Retention Relationships and Hansen Solubility Parameters

Deshmukh, Subrajeet; Macko, Tibor; Arndt, Jan‐Hendrik; Barton, Bastian; Bernardo, Raffaele; Doremaele, Gerard van; Brüll, Robert

doi:10.1021/acs.iecr.2c00527

Cited by 7 publications

(1 citation statement)

References 62 publications

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“…In the energy field, the HSPs have been applied in the delignification of sugar cane bagasse for ethanol production [ 18 ], the incorporation of polyoxymethylene ethers in diesel fuels to reduce particulate matter [ 19 ], and the investigation of better co-solvents for improving fuel quality [ 20 ], among other applications. In separation science, the solvent-membrane affinity is estimated to facilitate the permeation of solvents and the removal of target residues [ 21 , 22 ], to describe the adsorption separation mechanism between mobile phase–adsorbent–adsorbed material [ 23 , 24 ], to select the mobile phase [ 25 ], and to predict the retention of analytes in chromatographic separations [ 26 ]. They are also involved in many other applications.…”

Section: Introductionmentioning

confidence: 99%

Hansen Solubility Parameters Applied to the Extraction of Phytochemicals

Novaes,

de Faria,

Ferraz

et al. 2023

Plants

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In many analytical chemical procedures, organic solvents are required to favour a better global yield upon the separation, extraction, or isolation of the target phytochemical analyte. The selection of extraction solvents is generally based on the solubility difference between target analytes and the undesired matrix components, as well as the overall extraction procedure cost and safety. Hansen Solubility Parameters are typically used for this purpose. They are based on the product of three coordinated forces (hydrogen bonds, dispersion, and dipolar forces) calculated for any substance to predict the miscibility of a compound in a pure solvent, in a mixture of solvents, or in non-solvent compounds, saving time and costs on method development based on a scientific understanding of chemical composition and intermolecular interactions. This review summarises how Hansen Solubility Parameters have been incorporated into the classical and emerging (or greener) extraction techniques of phytochemicals as an alternative to trial-and-error approaches, avoiding impractical experimental conditions and resulting in, for example, saving resources and avoiding unnecessary solvent wasting.

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Section: Introductionmentioning

confidence: 99%

Hansen Solubility Parameters Applied to the Extraction of Phytochemicals

Novaes,

de Faria,

Ferraz

et al. 2023

Plants

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Monitoring the Chemical Composition of Polyolefins along the Molar Mass Axis with High‐Temperature Size Exclusion Chromatography Coupled with an Infrared Detector (HT SEC‐IR5)

Aboelanin

Deshmukh

Macko

et al. 2023

Macromolecular Symposia

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Series of ethylene/1‐alkene and ethylene‐propylene‐diene copolymers are separated with size exclusion chromatography (SEC) at 150°C using 1,2,4‐trichlorobenzene as the mobile phase. Methyl (CH3–) and methylene (–CH2–) groups in the separated polymer samples are monitored at specific wavelengths via a filter‐based infrared detector (IR5). It is found that the ratio of CH3/CH2 may increase, be constant, decrease or change irregularly along the molar mass axis, depending on the sample under investigation. Because the CH3/CH2 profiles may be very different even for a given series of copolymers synthesized with the same catalyst, it is supposed that one or more experimental parameters, which are not strictly controlled throughout synthesis, are responsible for these substantial differences in the chemical composition along the molar mass axis. The correlation between the ratio of CH3– to –CH2– groups and the average chemical composition of the investigated series of polymer samples as well as the reproducibility of the measurements and the limit of detection of the SEC‐IR5 measurements are evaluated. Coupling of SEC with the advanced IR5‐detector enables the convenient and reliable characterization of the chemical composition of many polyolefin materials along their molar mass axis. The monitoring of the chemical composition may help to improve quality of synthesized copolymers.

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