Gas Permeation of Sulfur Thin-Films and Potential as a Barrier Material
oleh: Xicheng Jia, Thomas D. Bennett, Matthew G. Cowan
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2019-06-01 |
Deskripsi
Elemental sulfur was formed into poly(ether sulfone)-supported thin-films (ca. 10 µm) via a melt-casting process. Observed permeabilities of C<sub>2</sub>H<sub>4</sub>, CO<sub>2</sub>, H<sub>2</sub>, He, and N<sub>2</sub> through the sulphur thin-films were <1 barrer. The sulfur thin-films were observed to age over a period of ca. 15 days, related to the reversion of polymerized sulfur to the S<sub>8</sub> allotrope. This structural conversion was observed to correlate with an increase in the permeability of all gases.