Selective CO2 Sequestration with Monolithic Bimodal Micro/Macroporous Carbon Aerogels Derived from Stepwise Pyrolytic Decomposition of Polyamide-Polyimide-Polyurea Random Copolymers
Autor: | Chandana Mandal, Adnan Malik Saeed, Hojat Majedi Far, Suraj Donthula, Chariklia Sotiriou-Leventis, Parwani M. Rewatkar, Tahereh Taghvaee, Nicholas Leventis |
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Rok vydání: | 2017 |
Předmět: |
Materials science
chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Adsorption chemistry Chemical engineering Polyamide Organic chemistry General Materials Science Pyrolytic carbon 0210 nano-technology Selectivity Carbon Polyimide Polyurea BET theory |
Zdroj: | ACS Applied Materials & Interfaces. 9:13520-13536 |
ISSN: | 1944-8252 1944-8244 |
Popis: | Polymeric aerogels (PA-xx) were synthesized via room-temperature reaction of an aromatic triisocyanate (tris(4-isocyanatophenyl) methane) with pyromellitic acid. Using solid-state CPMAS 13C and 15N NMR, it was found that the skeletal framework of PA-xx was a statistical copolymer of polyamide, polyurea, polyimide, and of the primary condensation product of the two reactants, a carbamic–anhydride adduct. Stepwise pyrolytic decomposition of those components yielded carbon aerogels with both open and closed microporosity. The open micropore surface area increased from |
Databáze: | OpenAIRE |
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