Arsenic–sulfur solutions were synthesized by dissolving amorphous arsenic trisulfide (a-As2S3) in anhydrous amine solvents. Ethylenediamine provided the highest solubility for As2S3 and led to optimum gelation behavior. Thus, it was selected as the model system for this study. The emphasis of the study was the identification of the active polymerizing species in the As2S3–ethylenediamine solutions. The molecular transformations that occurred during the sol-to-gel and gel-to-glass transitions of fibers prepared from the As2S3–ethylenediamine solutions were also examined and correlated to the proposed solution species.
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
- Materials Chemistry