The solubility parameters of fluorine-containing oxyethylates

Voelkel, Adam; Janas, J.

doi:10.1016/0022-1139(93)02935-8

Cited by 13 publications

(7 citation statements)

References 23 publications

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“…where δ d , δ p and δ h denote the dispersive, polar and hydrogen-bonding contributions, respectively. Liquid materials may be examined by IGC and evaluated according to the procedures advanced by Price (1989) and/or Janas (1993, 1994). However, the determination of HSP for solids is much more complicated.…”

Section: Introductionmentioning

confidence: 99%

Determination of Hansen Solubility Parameters by Means of Gas-Solid Inverse Gas Chromatography

Voelkel

Batko

Adamska

et al. 2008

Adsorption Science & Technology

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The determination of Hansen Solubility Parameters (HSP) from inverse gas chromatographic (IGC) data for a group of nano-materials and modified nano-materials is presented and discussed. The solubility parameter concept is applied in many industries to explain the different properties of the various components in a formulation. Knowledge of the solubility parameter data for different components is important for predicting the magnitude of the interaction between the formulation components and the future stability of the product. Solubility parameter data are also useful in the description and interpretation of different phenomena occurring between materials such as their miscibility, compatibility or adsorption. The inverse gas chromatography method is widely used for the characterization of polymers and polymer blends, surfactants, biopolymers, solid food and petroleum pitches. The method involves placing the investigated material (stationary phase) in a column and then characterizing it using volatile probes with known properties (test solutes) which are carried by a mobile phase. The solubility parameter called the Hildebrand solubility parameter or the Hildebrand parameter is only applied for regular solutions. The so-called Hansen solubility parameter (HSP) is an extension of the Hildebrand solubility parameter to polar and hydrogen-bonding systems. Hansen assumed that the cohesive energy can be considered as the sum of the contributions from dispersive (Ed), polar (Ep) and hydrogen-bonding (Eh) interactions: –Ecoh = –Ed – Ep – Eh; and that the total solubility parameter (δT) may be expressed as δT2 = δd2 + δp2 + δ2h, where δp, δp and δh denote the dispersive, polar and hydrogen-bonding contribution, respectively. The estimation of HSP from IGC data for a group of nano-materials and modified nano-materials is presented and discussed here.

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Section: Introductionmentioning

confidence: 99%

Determination of Hansen Solubility Parameters by Means of Gas-Solid Inverse Gas Chromatography

Voelkel

Batko

Adamska

et al. 2008

Adsorption Science & Technology

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“…Using different types of probe solutes, it is possible to obtain the dispersive and specific components of the solubility parameter (26,27). Hansen (26) and later Voelkel and Janas (27,28) separated the contributions of the solubility parameters attributed to dispersive (δ d ), inductive (δ in ), and hydrogen-bonding (δ h ) solute-solvent interactions. The total (corrected) solubility parameter (δ T ) was then calculated from the equation:…”

Section: Polarity and Interaction Parameters Determinedmentioning

confidence: 99%

“…The solubility parameter was calculated by the procedure given by DiPaola-Baranyi and Guillet using equation 11. Increments of the solubility parameters were calculated as described previously (27,28).…”

Section: Calculation Of Polarity and Interaction Parametersmentioning

confidence: 99%

Principal Component Analysis of Polarity and Interaction Parameters in Inverse Gas Chromatography

Héberger¹,

Milczewska²,

Voelkel³

2001

Journal of Chromatographic Science

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Inverse gas chromatography is used in the characterization of aliphatic-aromatic and aromatic ketones, their oximes, and ketone-oxime or oxime-oxime mixtures. All these organic materials are used as liquid stationary phases in gas chromatographic columns. A series of polarity and Flory-Huggins interaction parameters are determined and used to describe the physicochemical properties of examined materials, metal extractants, and products of their degradation. Principal component analysis (PCA) is performed on a data matrix consisting of polarity and interaction parameters for ketones, their oximes, and mixtures. The calculations are carried out on the correlation matrix. It is found that seven principal components account for more than 95% of the total variance in the data, indicating that the polarity (interaction) parameters are not correlating well. Physical meanings are attributed to the principal components, the most influential ones being that the first and the second principal components account for several Flory-Huggins interaction parameters, whereas the fifth is correlated with criterion "A". The plots of component loadings show characteristic groupings of polarity indicators, whereas that of component scores show several groupings of stationary phases. Cluster analysis provides mainly the same groupings. PCA allows for the grouping of polarity and solubility parameters based on the information carried within those parameters. There is no need to use more than one parameter from each cluster. McReynolds polarity and the partial molar excess Gibbs free energy of solution per methylene group carry the same information. The groups of ketones, oximes, and their mixtures can be distinguished with the use of PCA on the basis of the measured polarity, solubility parameters, or both.

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“…(52. By using different types of probe solutes it is possible to obtain the dispersive and specific component of the solubility parameter [8,18]. It was earlier shown that solubility parameter (and its increments) may be successfully used for the characterisation of the organic layer bonded to the silica surface [19].…”

Section: ~Plvgml]mentioning

confidence: 99%

“…Values of the increments of the solubility parameter corresponding to dispersive 6d and specific 6s interactions were calculated with the use of the procedure proposed by Price [22] and Voelkel and Janas [8,18]. Equation (7) was used separately for two groups of solutes, i) n-alkanes, ii) polar test solutes.…”

Section: Calculation Of Igc Parametersmentioning

confidence: 99%

The use of solubility parameters in characterization of titanate modified silica gel by inverse gas chromatography

Voelkel

Grześkowiak

2000

Chromatographia

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The solubility parameters of fluorine-containing oxyethylates

Cited by 13 publications

References 23 publications

Determination of Hansen Solubility Parameters by Means of Gas-Solid Inverse Gas Chromatography

Determination of Hansen Solubility Parameters by Means of Gas-Solid Inverse Gas Chromatography

Principal Component Analysis of Polarity and Interaction Parameters in Inverse Gas Chromatography

The use of solubility parameters in characterization of titanate modified silica gel by inverse gas chromatography

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