ADSORPTION MODELING OF POLYDIMETHYLSILOXANE ON SILICA: USING HEXAMETHYLDISILOXANE AS A MODEL PROBE

H. Barthel (), L. Rösch and J. Weis
Additional contact information
H. Barthel: Wacker-Chemie GmbH, Werk Burghausen, D-84480 Burghausen, Germany
L. Rösch: Wacker-Chemie GmbH, Werk Burghausen, D-84480 Burghausen, Germany
J. Weis: Wacker-Chemie GmbH, Werk Burghausen, D-84480 Burghausen, Germany

Surface Review and Letters (SRL), 1997, vol. 04, issue 05, 873-878

Abstract: Surface interactions play a most important part in the reinforcement of silicone elastomers, owing to the adsorption of the polydimethylsiloxane (PDMS) chain on the filler surface. The impact of the silylation of surface silanol groups on the surface structure and activity is of high technical interest. Hexamethyldisiloxane is an appropriate volatile probe to model the adsorption interactions of the PDMS polymer. In this study we investigated the static-volumetric gas adsorption of hexamethyldisiloxane on hydrophilic and silylated fumed silica, modified by dimethylsiloxy and trimethylsiloxy groups. The degree of silylation was controlled by the silanol content of the silica surface. Adsorption isotherms are discussed in terms of the adsorption energy and the heterogeneity of the active sites of adsorption.

Date: 1997
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X9700095X
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:04:y:1997:i:05:n:s0218625x9700095x

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X9700095X

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().