Prediction of polymer-solute thermodynamic parametersχ;12 and Ω;1 ∞; from inverse gas chromatography data. Application to poly(propylene oxide)-solute system

Chromatographic and non‐chromatographic characterization of poly‐α‐olefins

“…Inverse gas chromatography (IGC) [12][13][14][15][16][17][18][19][20][21][22][23][24] is an extension of classical gas chromatography. The material to be examined is placed in a chromatographic column and studied using test solutes.…”

“…poly-α-olefin); V g is the specific retention volume of the test solute; M 1 is the molecular weight of the solute; p o 1 is the saturated vapour pressure of the solute; B 11 is the second virial coefficient of the solute; V o i is the molar volume; ρ is the density, and R is the gas constant. • solubility parameter [20][21][22][23][24][25] characterizing the examined material. It may be determined by means of IGC with the use of values of the Flory-Huggins parameter determined earlier for the series of test solutes in solute examined material system [χ ∞ (12)i ] and values of solubility parameter for test solutes (δ 1i ) according to equation (2):…”