Das, Tamalika and Sengupta, Srijoni and Jana, Animesh and Pal, Abhijit and Roy, Indranil and Sardar, Soumen and Saha, Nayan Ranjan and Ghosh, Sourja and Bandyopadhyay, Abhijit (2020) Graphene oxide grafted hyperbranched poly (vinyl imidazole) with ionic liquid components as a potential carbon dioxide scrubber. Reactive & Functional Polymers, 146. Art No-104432. ISSN 1381-5148

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The present work focuses on the design of a CO2 scavenger, capable of adsorbing a low concentration of CO2 from a mixed gas composition. Typically, vinyl imidazole and an ionic liquid brancher were copolymerized by ``Strathclyde methodology'' and grafted from graphene oxide; GO-g-(HB) PVIm-co-PIL (Cl). The chain transfer agent maintained short chains and developed hyperbranched architecture in GO-g-(HB) PVIm-co-PIL (Cl). The structure and the properties of GO-g-(HB) PVIm-co-PIL (Cl) was established from FTIR, (HNMR)-H-1, Raman, XRD and rheology. A metathesis reaction was carried out to exchange chloride anions with hexafluorophosphate anions; GO-g-(HB) PVIm-co-PIL (PF6). GO-g-(HB) PVIm-co-PIL (PF6) selectively captured a low concentration of CO2 from a mixed gas. The surface functionalities/properties of GO, hyperbranched architecture, porosity, nitrogen content and surface charge distribution together played a significant role in efficient and selective CO2 capture.

Item Type: Article
Subjects: Engineering Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 08 Feb 2021 10:35
Last Modified: 08 Feb 2021 10:35
URI: http://cgcri.csircentral.net/id/eprint/4991

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