Citation
Vv. Kotov et al., State of water in partially imidized polyamide acid membranes, RUSS J PH C, 74(8), 2000, pp. 1352-1356
Citations number
11
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY
ISSN journal
00360244
→ ACNP
Volume
74
Issue
8
Year of publication
2000
Pages
1352 - 1356
Database
ISI
SICI code
0036-0244(200008)74:8<1352:SOWIPI>2.0.ZU;2-E
Abstract
The state of water in aromatic polyamide acid (PAA) membranes with various
degrees of imidization are studied. Gravimetry and IR spectroscopy measurem
ents suggest that the degree of dehydration of the membranes increases with
the degree of imidization. At low degrees of imidization, water is practic
ally uniformly distributed between the structural units of the PAA membrane
, while the disordered state of water prevails in highly imidized membranes
.