Summary
The influence of thermal history of the stationary phase in inverse gas chromatography has been studied, using polystyrene and solvents of very different solubility behaviour. While no differences in retention volumes are observable well above Tg,strongly deviating retention values are determined around and below Tg. Changes in retention behaviour can be correlated to a change in surface to volume ratio of the polymer and its influence on combined surface and bulk retention mechanism. Examplified by the system polystyrene/nitromethane the results give evidence for a different solution mechanism above and below Tg of the polymer.
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References
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Klein, J., Waltnitzki, G. The influence of thermal column history on the retention behaviour in inverse gaschromatography. Polymer Bulletin 1, 451–457 (1979). https://doi.org/10.1007/BF00255707
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DOI: https://doi.org/10.1007/BF00255707