Preparation and Investigation of High Surface Area Aerogels from Crosslinked Polypropylenes

0586718 - ÚFCH JH 2025 RIV CH eng J - Článek v odborném periodiku
Coufal, R. - Fijalkowski, M. - Adach, K. - Bu, H. - Karl, Ch. W. - Mikysková, Eliška - Petrík, S.
Preparation and Investigation of High Surface Area Aerogels from Crosslinked Polypropylenes.
Polymers. Roč. 16, č. 10 (2024), č. článku 1382. E-ISSN 2073-4360
Grant CEP: GA MŠMT(CZ) LM2023066
Institucionální podpora: RVO:61388955
Klíčová slova: induced phase-separation * polyimide aerogels * polypropylene * crosslinking * aerogel * thermally induced phase separation * freeze-drying * supercritical drying
Obor OECD: Physical chemistry
Impakt faktor: 5, rok: 2022
Způsob publikování: Open access

Polypropylene-based aerogels with high surface area have been developed for the first time. By chemical crosslinking of polypropylene with oligomeric capped-end amino compounds, followed by dissolution, thermally induced phase separation, and the supercritical CO2 drying process or freeze-drying method, the aerogels exhibit high specific surface areas up to 200 m2/g. Moreover, the silica-cage multi-amino compound was utilized in a similar vein for forming hybrid polypropylene aerogels. According to the SEM, the developed polypropylene-based aerogels exhibit highly porous morphology with micro-nanoscale structural features that can be controlled by processing conditions. Our simple and inexpensive synthetic strategy results in a low-cost, chemically resistant, and highly porous material that can be tailored according to end-use applications.
Trvalý link: https://hdl.handle.net/11104/0354157