Isosteric gas-chromatographic characteristics for the retention of water and isopropanol on polyvinyltrimethylsilane

Authors
Kotel'nikova, TA Ageev, EP
Citation
Ta. Kotel'Nikova et Ep. Ageev, Isosteric gas-chromatographic characteristics for the retention of water and isopropanol on polyvinyltrimethylsilane, RUSS J PH C, 73(8), 1999, pp. 1315-1319
Citations number
24
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY
ISSN journal
00360244 → ACNP
Volume
73
Issue
8
Year of publication
1999
Pages
1315 - 1319
Database
ISI
SICI code
0036-0244(199908)73:8<1315:IGCFTR>2.0.ZU;2-G
Abstract
The sorption isotherms and isosteric characteristics for the retention wate r and isopropanol on polyvinyltrimethylsilane (PVTMS) are measured by gas c hromatography. The surface of the polymer layer is non-uniformly filled by the sorbates with the formation of multilayer clusters. Water interacts wit h PVTMS only via adsorption forces, whereas isopropanol, accumulating at th e places of primary sorption, modifies the polymer structure so as to open transport pathways.