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Use of inverse gas chromatography to assess the compatibility of polyurethane foam with liquids at different temperatures
Author(s) -
Jackson Paul L.,
Huglin Malcolm B.
Publication year - 1994
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1994.210330411
Subject(s) - polyurethane , inverse gas chromatography , solubility , materials science , hildebrand solubility parameter , compatibility (geochemistry) , methanol , polymer , inverse , gas chromatography , atmospheric temperature range , thermodynamics , chromatography , composite material , chemical engineering , chemistry , organic chemistry , physics , geometry , mathematics , engineering
A crosslinked polyurethane foam has been used as the stationary phase in inverse gas chromatography to measure the solubility parameter (δ 2 ) of the polymer at several temperatures ( T ) within the range 298–383 K. Values of δ 2 = 29.5(MPa) 1/2 at 298K and dδ 2 /d T = −0.06(MPa) 1/2 K −1 were yielded. Linear decreases with temperature of the solubility parameters (δ 1 ) of water, ethanol and methanol were obtained by calculation from relevant properties of the liquids. The results were used to assess the conditions for the polyurethane foam to act as a non‐interacting barrier against liquids of different polarities for which the criterion is that |δ 1 − δ 2 | should be large. The findings highlight the need to consider both the nature of the liquid and the temperature regime.