Water vapor sorption and transport in dense polyimide membranes
โ Scribed by Jingui Huang; Richard J. Cranford; Takeshi Matsuura; Christian Roy
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 177 KB
- Volume
- 87
- Category
- Article
- ISSN
- 0021-8995
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๐ SIMILAR VOLUMES
The sorption and transport of water in nylon 6,6 films as functions of the relative humidity (RH) and temperature were studied. Moisture-sorption isotherms determined gravimetrically at 25, 35, and 45ยฐC were described accurately by the GAB equation. Water-vapor transmission rates were enhanced above
The water sorption behavior and the activation energy were investigated for various chemical structure polyimide thin films; BPDA-PDA, BPDA-ODA, PMDA-ODA, and 6FDA-ODA. The activation energy for the water diffusion varied in the range of 5.53 to 9.27kcal/mol, and was in the increasing order: BPDA-PD
Water sorption and transport properties for a series of homogeneous blends of hydrophobic polyethersulfone and hydrophilic polyethyloxazoline are reported. Only blends that remained homogeneous after exposure to liquid water were studied in detail. Equilibrium solubility of water in the blend films