Abstract
The total interaction parameter at infinitely high polymer concentration. χt∞, and the effective exchange energy parameter, X̄12, of poly(dimethyl siloxane) with n-pentane, n-hexane, n-heptane and n-nonane were determined around room temperature using the inverse gas chromatography technique. The values of χt∞ are in agreement with corresponding literature values. The exchange enthalpy X12 and entropy, Q12, parameters were determined at the same temperature. The X12 parameters increase with the carbon number of the n-alkanes, while their temperature dependence is almost negligible. The Q12 parameters are approximately independent of temperature and carbon number of the n-alkanes.
Keywords
Inverse gas chromatography
Enthalpy
Pentane
Nonane
Hexane
Heptane
Gas chromatography
Siloxane
Alkane
Thermodynamics
Flory–Huggins solution theory
Carbon fibers
Chemistry
Inverse temperature
Materials science
Polymer
Chromatography
Analytical Chemistry (journal)
Hydrocarbon
Organic chemistry
Physics
Subject Areas
Adsorption, diffusion, and thermodynamic properties of materials
·Spectroscopy ·Physical Sciences
Silicone and Siloxane Chemistry
·Materials Chemistry ·Physical Sciences
Thermal and Kinetic Analysis
·Materials Chemistry ·Physical Sciences
Citations by Year
2012: 1
2023: 1
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