Triptycene-based microporous polymer with pending tetrazole moieties for CO2 -capture application

Area of Science:

• Materials Science
• Polymer Chemistry
• Separation Science

Background:

• Developing efficient adsorbents for carbon capture is crucial for clean energy.
• Porous polymers offer tunable structures for gas adsorption applications.

Purpose of the Study:

• To synthesize and characterize a triptycene-based microporous polymer functionalized with CO2-philic tetrazole moieties.
• To evaluate the CO2 uptake capacity and selectivity of the developed polymer for clean energy applications.

Main Methods:

• Post-polymerization functionalization of triptycene-based microporous polymer using tetrazole moieties.
• Zinc chloride (ZnCl2)-catalyzed reaction.
• Gas adsorption experiments at 273 K and 1.0 bar.

Main Results:

• The functionalized polymer exhibited a high CO2 uptake capacity of 134 cm(3) g(-1) (26.5 wt%).
• The material demonstrated high selectivity for CO2 over nitrogen (N2) and methane (CH4).

Conclusions:

• The triptycene-based porous polymer with tetrazole functionalization is a promising candidate for efficient CO2 capture.
• This material holds potential for practical applications in clean energy technologies, specifically in gas separation and carbon management.