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Gas Permeation of Sulfur Thin-Films and Potential As a Barrier Material

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Date 2019 Jun 15
PMID 31197088
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Abstract

Elemental sulfur was formed into poly(ether sulfone)-supported thin-films (ca. 10 µm) via a melt-casting process. Observed permeabilities of CH, CO, H, He, and N 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 allotrope. This structural conversion was observed to correlate with an increase in the permeability of all gases.

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