Direct synthesis of ordered mesoporous materials from thermoplastic elastomers

Mark Robertson, Alejandro Guillen-Obando, Andrew Barbour, Paul Smith, Anthony Griffin and Zhe Qiang ()
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Mark Robertson: University of Southern Mississippi
Alejandro Guillen-Obando: University of Southern Mississippi
Andrew Barbour: University of Southern Mississippi
Paul Smith: University of Southern Mississippi
Anthony Griffin: University of Southern Mississippi
Zhe Qiang: University of Southern Mississippi

Nature Communications, 2023, vol. 14, issue 1, 1-11

Abstract: Abstract The ability to manufacture ordered mesoporous materials using low-cost precursors and scalable processes is essential for unlocking their enormous potential to enable advancement in nanotechnology. While templating-based methods play a central role in the development of mesoporous materials, several limitations exist in conventional system design, including cost, volatile solvent consumption, and attainable pore sizes from commercial templating agents. This work pioneers a new manufacturing platform for producing ordered mesoporous materials through direct pyrolysis of crosslinked thermoplastic elastomer-based block copolymers. Specifically, olefinic majority phases are selectively crosslinked through sulfonation reactions and subsequently converted to carbon, while the minority block can be decomposed to form ordered mesopores. We demonstrate that this process can be extended to different polymer precursors for synthesizing mesoporous polymer, carbon, and silica. Furthermore, the obtained carbons possess large mesopores, sulfur-doped carbon framework, with tailorable pore textures upon varying the precursor identities.

Date: 2023
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DOI: 10.1038/s41467-023-36362-x

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