Thermal recoverability of a polyelectrolyte-modified, nanoporous silica-based system

The thermal recoverability of a nanoporous silica-based system modified by a cross-linked polyelectrolyte is investigated. At room temperature, as a nominally hydrostatic pressure is applied, the gel matrix can be partially dehydrated. The released water molecules will be forced into the initially e...

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Veröffentlicht in:	Journal of materials research 2006-09, Vol.21 (9), p.2389-2392
Hauptverfasser:	Surani, F.B., Han, A., Qiao, Y.
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Sprache:	eng
Schlagworte:	Absorption Infiltration Nanostructure
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description	The thermal recoverability of a nanoporous silica-based system modified by a cross-linked polyelectrolyte is investigated. At room temperature, as a nominally hydrostatic pressure is applied, the gel matrix can be partially dehydrated. The released water molecules will be forced into the initially energetically unfavorable nanopores and are “locked” there. At an elevated temperature, the infiltration pressure increases slightly, which is contradictory to the experimental data of the unmodified system. More importantly, the defiltration of the confined liquid is significantly promoted, leading to a much higher system recoverability.
doi_str_mv	10.1557/jmr.2006.0287
format	Article
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subjects	Absorption Infiltration Nanostructure
title	Thermal recoverability of a polyelectrolyte-modified, nanoporous silica-based system
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