Highly Thermally Stable and Gas Selective Hexaphenylbenzene Troger's Base Microporous Polymers.

ABSTRACT: This study shows the multistep synthesis of a series of Tröger's base polymers of intrinsic microporosity (TB-PIMs) based on a hexaphenylbenzene (HPB) core, with a focus on evaluating their thermal stability, porosity, and CO₂ capture performance. Both ladder and linear structures were prepared, designed to feature tunable nitrogen content and porosity. Our findings demonstrate that polymers with higher nitrogen content, such as tetra-TB-HPB, exhibit superior CO₂ affinity and selectivity, attributed to enhanced interactions with CO₂ and optimized micropore sizes. Linear TB-polymers 1 and 2 are also made for comparison and show competitive performance in carbon capture, suggesting that cost-effective, simpler-to-synthesize materials can achieve efficient gas

SUBMITTER: Wu Y 

PROVIDER: S-EPMC11660159 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature