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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

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Triptycene-Based Microporous Polymers: Synthesis and Their Gas Storage Properties.

Chun Zhang¹, Ying Liu¹, Buyi Li²

¹College of Life Science and Technology, Huazhong University of Science and Technology, and National Engineering Research Center for Nanomedicine, Hubei, 430074, China.

ACS Macro Letters

|May 17, 2022

Summary

This summary is machine-generated.

Novel triptycene-based microporous polymers (STPs) were synthesized. These materials exhibit high surface areas and efficiently adsorb hydrogen and carbon dioxide, showing promise for gas storage applications.

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Area of Science:

Materials Science
Polymer Chemistry
Chemical Engineering

Background:

Microporous polymers are crucial for gas storage and separation.
Triptycene units offer unique structural rigidity and porosity.
Efficient synthesis of novel triptycene-based polymers is needed.

Purpose of the Study:

To synthesize novel triptycene-based microporous polymers (STPs).
To evaluate the gas adsorption properties of the synthesized STPs.

Main Methods:

Synthesis of STPs via nickel(0)-catalyzed Ullmann cross-coupling reactions.
Characterization of STPs using BET surface area analysis.
Measurement of hydrogen (H2) and carbon dioxide (CO2) adsorption.

Main Results:

Successfully synthesized two novel STPs, STP-I and STP-II.
Achieved high BET surface areas of 1305 m² g⁻¹ for STP-I and 1990 m² g⁻¹ for STP-II.
Demonstrated significant reversible adsorption capacities: 1.60 wt% H2 and 16.15 wt% CO2 for STP-I; 1.93 wt% H2 and 18.20 wt% CO2 for STP-II.

Conclusions:

The novel STPs possess excellent porosity and gas adsorption capabilities.
These triptycene-based polymers are promising materials for hydrogen and carbon dioxide storage.