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Current standard materials for OSN: Lenzing P84 polyimide and PDMS.
| P84 polyimide | PDMS | |
|---|---|---|
 |
 |
|
| Glass transition temperature (°C) | 329 | −123 |
| Young's modulus (GPa) | 2.50 | 0.004 |
| Methanol permeance* [L/(h m2 bar)] | 5.48 | 0.619 |
| Source | (P84 product data, http://www.hppolymer.com/pdfs/Dimond%20wheel%20brochure.pdf; Darvishmanesh et al., 2010) | Lotters et al., 1997; Postel et al., 2013 |
At room temperature.
