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4883803 
Journal Article 
Determination of the Solubility Parameter of Epoxidized Soybean Oil by Inverse Gas Chromatography 
Ng, S; Parise, T; Johnson, SE; Davidson, DF; Hanson, RK; Wang, Q; Chen, Y; Tang, Jun; Zhang, Z 
2013 
Yes 
Journal of Macromolecular Science: Part B - Physics
ISSN: 0022-2348 
52 
10 
1405-1413 
English 
WOS:000319722700004 
The thermodynamic parameters of epoxidized soybean oil (ESO) were determined by means of inverse gas chromatography (IGC) in the temperature range of 303.15 K-343.15K. Two groups of probe solvents with different chemical natures and polarities were used to obtain information about ESO. The thermodynamic parameterssuch as molar heat of sorption, weight fraction activity coefficient, Flory-Huggins interaction parameter, and partial molar heat of mixingwere obtained to judge the interactions between ESO and solvents at the studied temperatures. Also, the solubility parameters of ESO were found by plotting the graph of (1) (2)/(RT) - (12)/V-1 vs. solubility parameters, (1), of the probes. The results showed that the selected solvent ethyl acetate was a moderate solvent for ESO; n-hexane was a moderate (but close to a better) solvent; while the probes n-heptane, n-octane, n-nonane, and chloroform were excellent solvents. From the extrapolation to 298K, the solubility parameter value of ESO was 16.70 (J/cm(3))(0.5). 
epoxidized soybean oil; Flory-Huggins interaction parameter; inverse gas chromatography; solubility parameter; weight fraction activity coefficient