Troger's Base Polyimide Membranes with Enhanced Mechanical Robustness for Gas Separation.

ABSTRACT: The rigid V-shaped Tröger's base (TB) unit has been proven efficacious in creating microporosity, making TB-based polyimides (PIs) exhibiting significant advantages in simultaneously increasing gas permeability and selectivity for the separation industry. However, TB-based PIs commonly display undesired mechanical performance due to the low molecular weight resulting from the evident steric hindrance and low reactivity of TB-containing diamines. Herein, a novel diamine-containing bisimide linkage (BIDA) has been synthesized and then polymerized with paraformaldehyde via a moderate "TB polymerization" strategy to furnish polymers simultaneously, including imide linkages and TB units in the polymer main chains, namely, TB-PIs. This T

SUBMITTER: Lei X 

PROVIDER: S-EPMC11859751 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature