Characteristics and performance of a "universal" membrane suitable for gas separation, pervaporation, and nanofiltration

Article Abstract:

The performance of a given membrane in gas separation, nanofiltration and pervaporation is found to be interplay between the thickness of the top layer, steric hindrance during transport and is indirectly determined by effects of hydrophobicity/hydrophilicity. The results have shown that multifunctional membranes would rapidly gain importance in view of the flexibility of processes and the robustness of the separation.

Analysis, Gases, Membranes (Technology), Hydrophobic effect, Gas separation

---

Influence of the structural properties of poly(vinylidene fluoride) membranes on the heterogeneous nucleation rate of protein crystals

Article Abstract:

The influence of the morphological parameters of microporous poly(vinylidene fluoride) (PVDF) membranes on the heterogeneous nucleation rate of hen egg white lysozyme (HEWL) crystals is investigated. It is revealed that measurements performed during crystallization tests carried out at pH 4.5 in NaAc 0.05 M buffer with different precipitant (NaCl) concentrations agree with the predicted trends.

Electric properties, Proteins, Nucleation, Nucleation (Chemistry), Sodium chloride

---

Determination of parameters affecting transport in polymeric membranes: parallels between pervaporation and nanofiltration

Article Abstract:

A study was conducted on the differences on structure and transport mechanisms of nanofiltration (NF) and pervaporation (PV) membranes by measuring water and ethanol fluxes and raffinose rejections, water and ethanol fluxes and water/ethanol-n-propanol separation factors, and gas and vapor (water, ethanol) permeance with the same membrane sequence.

Polymers, Membranes (Biology), Chemistry, Physical and theoretical, Physical chemistry

Similar abstracts:

• Abstracts: Molecular dynamics simulations of ternary membrane mixture: phosphatidylcholine, phosphatidic acid, and cholesterol

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.