Inverse gas chromatography in characterization of surfactants

Voelkel, Adam; Janas, J.; García-Domínguez, José Antonio

doi:10.1016/0021-9673(93)83073-2

Cited by 23 publications

(9 citation statements)

References 24 publications

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“…Inverse gas chromatography (IGC) has proved to be an effective technique for the measurement of solubility parameters of nonvolatile materials used as stationary phases 1–7. This technique is widely used for characterization of polymers and polymer blends,8 surfactants,9 biopolymers, solid food and petroleum products,10 and biological materials 11, 12.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of solubility parameters for nonvolatile branched hydrocarbons by inverse gas chromatography

Sreekanth

Reddy

2008

J of Applied Polymer Sci

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Flory-Huggins interaction parameters determined by inverse gas chromatographic (IGC) technique have been used for the estimation of solubility parameters of nonvolatile branched hydrocarbon solvents. A family of isosteric branched hydrocarbons consists of one apolar stationary phase, 19,24-dioctadecyldotetracontane (C78), and four polar stationary solvents formed by replacing one of the À ÀCH 3 groups of C78 by À ÀOH (POH), À ÀCN (PCN), À ÀSH (PSH), À ÀCF 3 (MTF), and two other polar solvents formed by replacing four À ÀCH 3 groups of C78 with four À ÀCF 3 (TTF) and À ÀOCH 3 (TMO) are investigated. The three-dimensional Hansen solubility parameters of the solvents have been estimated following the approaches of Voelkel and the method of Huang at five different temperatures. In the three components estimated by Voelkel method, the dispersion component is decreasing rapidly, whereas the polar, and hydrogen bonding components of the solubility parameters are increasing with temperature. In the components of solubility parameter estimated by Huang method, the dispersion and hydrogen bonding components are slowly decreasing with temperature, however, the polar components are almost constant with temperature. The components of solubility parameters for different solvents have been discussed in terms of solvent polarity.

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Section: Introductionmentioning

confidence: 99%

Evaluation of solubility parameters for nonvolatile branched hydrocarbons by inverse gas chromatography

Sreekanth

Reddy

2008

J of Applied Polymer Sci

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“…(6). [8,[18][19][20][21]. The Flory-Huggins interaction is used in the calculation of the solubility parameter according to the following relationship:…”

Section: Resultsmentioning

confidence: 99%

Inverse gas chromatography. Relationship between mass activity coefficient and flory-huggins interaction parameter in the examination of petroleum pitches

Voelkel

Fall

1997

Chromatographia

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SummaryThe use of the basic relations for the calculation of the weight fraction activity coefficient ~]~ and the FloryHuggins interaction parameter )CT2 requires the knowledge of the density and the molecular mass of the stationary phase. As these data are often inaccessible the use of a simplified equation is examined. The errors generated during the calculation of ~z and solubility parameter 5 2 are presented and discussed. All experimental data were collected for the series of fractions separated from high-boiling vacuum distillation residues of petroleum.

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“…[2][3][4]. Bu yöntem basit, hızlı, ekonomik ve polimerik materyallerin karakterizasyonu için termodinamik özelliklerinin incelenmesi de oldukça önemlidir [5][6][7][8][9][10].…”

Section: Investigation Of Thermodynamic Properties Of Methyl Methacryunclassified

Di̇etanolami̇n Yan Grup İhti̇va Eden Meti̇l Metakri̇lat Kopoli̇meri̇ni̇n Termodi̇nami̇k Özelli̇kleri̇ni̇n İncelenmesi̇

Açıkses¹,

Karagöz²

2018

NWSA

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ÖZBu çalışmada, P(DEAMSt0.19-ko-MMA)"polimerinin,(polimer-prob) sistemine ait bazı fiziksel ve termodinamik özellikleri ters gaz kromatoğrafisi metoduyla incelendi. Bu amaçla, kopolimer kromosorb-W destek katısı üzerine kaplanarak çelik kolon içine dolduruldu. Çalışmada prob olarak fiziklsel ve kimyasal özellikleri farklı olan bir seri alkol ve alkanlar kullanıldı. 333-473 K aralığında her 10 º C"de bir enjeksiyon yapılarak probların kopolimer üzerindeki spesifik alıkonma süreleri bulundu. Bu sürelerden spesifik alıkonma hacimleri hesaplandı. INVESTIGATION OF THERMODYNAMIC PROPERTIES OF METHYL METHACRYLATE COPOLYMER CONTAINING DIETHANOLAMINE SIDE GROUP ABSTRACTIn this study, some physical and thermodynamic properties of the (polymer-probe) system of P(DEAMSt0.19-co-MMA) polymer were investigated by Inverse gas chromatographic method. For this purpose, the copolymer was coated on the support matrix of Chromosorb-W and filled into a steel column. In this study, a series of alcohols and alkanes with different physical and chemical properties were used as probes. The probes had specific retention times on the copolymer by performing an injection of 10 o C at 333-473 K. The specific retention volumes have been calculated over this period. The glass transition temperature (Tg) of the copolymer from lnVg 0 ;1/T graph was determined to be 110 °C. The heats of the adsorption of the probes on the copolymer were calculated at temperatures below the glass transition temperature. The adsorption heats of the alcohols were higher than those of the alkanes. The values of G1  , partial molar free energy G1  and partial molar temperature H1  were found. These values corresponded to the values found for (polymer-nonsolvent) systems. In addition, the solubility parameters of the copolymer were calculated using the parameter values of the Flory-Huggins interaction. The solubility parameter of the copolymer was found to decrease with temperature. It was determined that the probs was not a solvent for the copolymer under the glass transition temperature.

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Inverse gas chromatography in characterization of surfactants

Cited by 23 publications

References 24 publications

Evaluation of solubility parameters for nonvolatile branched hydrocarbons by inverse gas chromatography

Evaluation of solubility parameters for nonvolatile branched hydrocarbons by inverse gas chromatography

Inverse gas chromatography. Relationship between mass activity coefficient and flory-huggins interaction parameter in the examination of petroleum pitches

Di̇etanolami̇n Yan Grup İhti̇va Eden Meti̇l Metakri̇lat Kopoli̇meri̇ni̇n Termodi̇nami̇k Özelli̇kleri̇ni̇n İncelenmesi̇

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