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
Rok vydání: 2017
Předmět:
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