Volume 136, Issue 32 47844
Article

Fabrication of PEI-grafted porous polymer foam for CO2 capture

Jingqian Deng

Jingqian Deng

Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education; College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China

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Zuolong Liu

Zuolong Liu

Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education; College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China

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Zhongjie Du

Corresponding Author

Zhongjie Du

Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education; College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China

Changzhou Institute of Advanced Materials, Beijing University of Chemical Technology, Jiangsu 213164, People's Republic of China

Correspondence to: Z. Du ([email protected]) and C. Zhang ([email protected])Search for more papers by this author
Wei Zou

Wei Zou

Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education; College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China

Changzhou Institute of Advanced Materials, Beijing University of Chemical Technology, Jiangsu 213164, People's Republic of China

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Chen Zhang

Corresponding Author

Chen Zhang

Key Laboratory of Carbon Fiber and Functional Polymers (Beijing University of Chemical Technology), Ministry of Education; College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China

Correspondence to: Z. Du ([email protected]) and C. Zhang ([email protected])Search for more papers by this author
First published: 15 April 2019
Citations: 17

ABSTRACT

A polymer foam material with both the open-cell porous structure and the polyethylenemine (PEI)-grafted inner face was constructed for CO2 capture. The porous poly(tert-butyl acrylate) foam was first prepared via a concentrated emulsion polymerization, and then the carboxyl groups were introduced on the interface of porous polymer after the hydrolysis reaction. Subsequently, the surface of the foam was grafted with PEI, and finally the PEI-grafted porous polymer foam designed as a CO2 capture material was obtained. The structures of the foams were characterized by infrared spectroscopy, EDS, and SEM. The CO2 adsorption properties were measured by adsorption/desorption cycles. As a result, the polymer foam contained a large number of amine groups (13.9 wt % N), and therefore possessed a high CO2 adsorption capacity (5.91 mmol g−1 at 40°C and 100 kPa). In addition, they also exhibited high CO2 adsorption rate, good selectivity for CO2-N2 separation, and good stability according to CO2 cyclic adsorption/desorption test. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47844.

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