THE INVESTIGATION OF THE PORE STRUCTURE OF SILICA-GELS WITH LONG-CHAIN ALKYL GRAFTS BY THERMAL-ANALYSIS

Authors
GOWOREK J STEFANIAK W
Citation
J. Goworek et W. Stefaniak, THE INVESTIGATION OF THE PORE STRUCTURE OF SILICA-GELS WITH LONG-CHAIN ALKYL GRAFTS BY THERMAL-ANALYSIS, Colloids and surfaces. A, Physicochemical and engineering aspects, 80(2-3), 1993, pp. 251-256
Citations number
16
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
80
Issue
2-3
Year of publication
1993
Pages
251 - 256
Database
ISI
SICI code
0927-7757(1993)80:2-3<251:TIOTPS>2.0.ZU;2-G
Abstract
The total pore volumes and the core size distributions were calculated for the silica gel Si-100 and chemically modified silica gels RP-8 an d RP-18 on the basis of the thermal desorption data of various liquids . The results obtained are compared with those from the nitrogen adsor ption/desorption method. Good consistency between the parameters obtai ned by using different methods is observed in the case of unmodified s ilica gel. The presence of long alkyl chains on the silica surface str ongly influences the pore diameter calculated from thermogravimetric d ata.