Carbohydrate based hyper-crosslinked organic polymers with –OH functional groups for CO2 separation. Issue 42 (2nd September 2015)

• Record Type: Journal Article
• Authors: Li, Haiying; Meng, Bo; Mahurin, Shannon M.; Chai, Song-Hai; Nelson, Kimberly M.; Baker, David C.; Liu, Honglai; Dai, Sheng
• Is Part Of: Journal of materials chemistry. Volume 3:Issue 42(2015)
• Page Start: 20913
• Page End: 20918
• Publication Date: 2015-09-02
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c5ta03213j
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : A class of novel hyper-crosslinked microporous polymers, based on green and renewable carbohydrates, was synthesized for carbon capture and storage with high CO2 /N2 selectivity by hydrogen bonding and dipole–quadrupole interactions. Abstract : Recently, microporous organic polymers, especially those hyper-crosslinked from functionalized aromatic monomers, have been shown to be effective for CO2 capture and storage with considerable capacity and selectivity. Herein, a class of novel microporous hyper-crosslinked polymers (HCPs), based on green and renewable carbohydrates, was synthesized by Friedel–Crafts alkylation for carbon capture and storage by hydrogen bonding and dipole–quadrupole interactions. These carbohydrate polymers, which have BET surface areas around 800 m 2 g −1, can absorb a considerable amount of CO2 with the CO2 /N2 selectivity up to 42 at 273 K, and 96 under 100 kPa in the mixed gases (0.15 mol CO2 and 0.85 mol N2 ). Furthermore, we experimentally and computationally studied the structures of carbohydrate backbones and determined several features that govern their CO2 absorption ability, which sheds light on understanding the structure/function relationship for designing better CO2 separation materials.