ADSORPTION OF WATER-VAPOR ON A SUPERADSORBENT POLYACRYLIC POLYMER .1. ISOTHERMS AND HEATS OF ADSORPTION OF WATER-VAPOR ON THE POLYMER

被引：8
|
作者：
BAKASS, M
MOKHLISSE, A
LALLEMANT, M
机构：
[1] FAC SCI MIRANDE,LRRS,CNRS,UA 23,BP 138,F-21004 DIJON,FRANCE
[2] UNIV CADI AYYAD,FAC SCI SEMLALIA,MARRAKECH,MOROCCO
来源：
THERMOCHIMICA ACTA | 1992年 / 204卷 / 02期
关键词：
D O I：
10.1016/0040-6031(92)85225-K
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This study concerns a superabsorbent polymer. For each pair of pressure P and temperature T values we have determined the hydration ratio at equilibrium, which enabled the equilibrium P - T diagram of the system to be plotted. It is established that this kind of solid is characterised by multilayer adsorption and capillary condensation. The isosteric adsorption enthalpy value (about 42 kJ per mole of water) is independent of the quantity of adsorbed water on the polymer. The polymer specific area is approximately 0.8 m2 g-1.
引用
收藏
页码：205 / 212
页数：8
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