Title of article
Positron probing of the micellar template interior in MCM-41
Author/Authors
Zaleski، نويسنده , , R and Borَwka، نويسنده , , A and Wawryszczuk، نويسنده , , J and Goworek، نويسنده , , J and Goworek، نويسنده , , T، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
6
From page
794
To page
799
Abstract
The properties of positronium annihilating in the micellar template in MCM-41 materials were investigated. For alkyltrimethylammonium bromide surfactants (Cn=14,16,18) the template interior is liquid-like; the bubble model of positronium, elaborated for bulk liquids, can be applied. The equivalent surface tension is linearly dependent on temperature, like in classic liquids. A very long-lived component in o-Ps lifetime spectrum (≈20 ns) can be ascribed to o-Ps in cracks in the elongated template structure.
Journal title
Chemical Physics Letters
Serial Year
2003
Journal title
Chemical Physics Letters
Record number
1784165
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