Synthesis and Characterization of Silica-Bound Propanesulfonic Acid

Abstract

Colloidal silica was prepared by Stober's method. After the dispersion was transferred to Dimethyl Formamide, reaction with mercaptopropyltrimethoxysilane gave silica with 0.35 mequiv/g of bound mercaptopropyl groups. The mercaptan was oxidized with tertbutylhydroperoxide to give 0.17 mequiv/g of bound sulfonic acid and leave 0.076 mequiv/g of unreacted thiol. The CP/MAS 13C 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.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1982
Accession Number
ADA212191

Entities

People

  • Rickey D. Badley
  • Warren T. Ford

Organizations

  • Oklahoma State University–Stillwater

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Acids
  • Amides
  • Availability
  • Classification
  • Dispersions
  • Identification
  • Military Research
  • Monitoring
  • Notation
  • Oklahoma
  • Security
  • Sulfonic Acids
  • Triangles
  • Universities

Fields of Study

  • Chemistry

Readers

  • Organic Chemistry
  • Surface Coatings Technology.