ISSN:
0449-2951
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Crystalline solids, as exemplified by TiO2 incorporated within a film of a model polymer, poly(vinyl chloride-vinyl acetate) copolymer, have been shown to absorb relatively large amounts of water vapor on the surface. In some cases all of the crystal surface may participate in the sorption process, despite evidence that the polymer has been initially present on the surface of the former. This, coupled with anomalous density changes in the film, suggests the possibility of measuring crystal flocculation within the membranes as well as the displacement of adsorbed polymer segments by means of water vapor. The anomalous density determinations were correlated with water transport measurements, and an equation for calculation of the heat of wetting of a crystal with a solid polymer is presented.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1963.100010147
