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This study uses inverse gas chromatography to determine thermodynamic interaction parameters between polyvinyl alcohol (PVA) and various alcohol solvents. Retention volumes were measured for PVA-solvent mixtures at temperatures from 100-120°C. Infinite dilution activity coefficients and Flory-Huggin interaction parameters were calculated and decreased with increasing temperature. The solubility parameter of PVA was determined to be 27.6 MPa1/2 at 100°C from plots of interaction parameters versus solvent sol

Author

Dgek London

Language

EN