Synthesis and Characterization of Silica-Bound Propanesulfonic Acid
Abstract
Colloidal silica was prepared by Stbber's method. After the dispersion was transferred to DMF, reaction with mercapto-propyltrimethoxysilane gave silica with 0.35 mequiv/g of bound mercaptopropyl groups. The mercaptan was oxidized with tert-butylhydroperoxide to give 0.17 mequiv/g of bound sulfonic acid and leave 0.076 mequiv/g of unreacted thiol. The CP/MAS 13 C NMR spectrum gives evidence of several partially oxidized intermediates, including a significant amount of disulfide. This is the first example of a functional group transformation on silica in a colloidal state.
Fields of Study & Subjects
Mesoporous Materials and Catalysis
Chemical Synthesis and Reactions
Silicone and Siloxane Chemistry
Publication details
- Journal / source
- CRC Press eBooks
- Pages
- 209–219
- Publication date
- 2 February 2026
- Language
- EN
- Document type
- Book chapter