Vacuum-Assisted Interfacial Polymerization Technique for Enhanced Pervaporation Separation Performance of Thin-Film Composite Membranes.

ABSTRACT: In this work, thin-film composite polyamide membranes were fabricated using triethylenetetramine (TETA) and trimesoyl chloride (TMC) following the vacuum-assisted interfacial polymerization (VAIP) method for the pervaporation (PV) dehydration of aqueous isopropanol (IPA) solution. The physical and chemical properties as well as separation performance of the TFC_VAIP membranes were compared with the membrane prepared using the traditional interfacial polymerization (TIP) technique (TFC_TIP). Characterization results showed that the TFC_VAIP membrane had a higher crosslinking degree, higher surface roughness, and denser structure than the TFC_TIP membrane. As a result, the TFC_VAIP membrane exhibited a higher separation performance in 70 wt.%

SUBMITTER: Gallardo MR 

PROVIDER: S-EPMC9144448 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature