ISSN:
0959-8103
Keywords:
inverse gas chromatography
;
poly(vinyl methylketone)
;
polymer-solute interaction parameters
;
surface energy
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
The inverse gas chromatography method was applied to the semicrystalline polymer poly(vinyl methyl ketone) (PVMK). The method was able to provide valuable information on the thermodynamic and surface properties of PVMK. Thirteen solutes with different chemical properties were used. They provided information on the type and strength of the polymer-solute interactions which were attributed to the melting behavior of PVMK. The melting temperature of PVMK was detected with precision using solutes that interacted strongly with PVMK. The interaction parameters χ12 of PVMK-alkanes over the temperature range 70-180°C were obtained and were shown to be independent of temperature and number of carbons in the alkane series. The dispersive contribution of the surface energy of PVMK was measured as a function of temperature. The values ranged between 29·00 and 18·00 mJ/m2. The molar heat of sorption and the molar free energy of adsorption were calculated.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
Permalink
