Hydrophilicity quantification of highly hydrophobic Decadodecasil 3R

被引:1
作者
denExter, MJ [1 ]
Jansen, JC [1 ]
vanBekkum, H [1 ]
Zikanova, A [1 ]
Dubsky, J [1 ]
Kocirik, M [1 ]
机构
[1] ACAD SCI CZECH REPUBL,J HEYROVSKY INST PHYS CHEM,CR-18223 PRAGUE 8,CZECH REPUBLIC
关键词
Decadodecasil; clathrasil; isotherm; sorption of water; heat of wetting; hydrophilicity scale;
D O I
10.1135/cccc19970981
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Sorption properties of the clathrasil Decadodecasil 3R (DD3R) have been investigated by measuring equilibrium sorption isotherms of water. The dependence of the adsorbed amount on the relative water pressure has been found almost invariant of temperature. This behaviour has been explained by a scarce population of hydrophilic sorption sites isolated sufficiently from each other and by a polymolecular adsorption on them. Such a behaviour is consistent with a simple BET model. Both the low concentration of hydrophilic sorption sites and their weak strength confirm the generally accepted assumption on weakly hydrophilic character of DD3R.
引用
收藏
页码:981 / 994
页数:14
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