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Hierarchically Mesoporous o ‐Hydroxyazobenzene Polymers: Synthesis and Their Applications in CO 2 Capture and Conversion
Author(s) -
Ji Guipeng,
Yang Zhenzhen,
Zhang Hongye,
Zhao Yanfei,
Yu Bo,
Ma Zhishuang,
Liu Zhimin
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201602667
Subject(s) - mesoporous material , polymer , epoxide , ammonium bromide , aqueous solution , bromide , metal , materials science , diazo , catalysis , metal ions in aqueous solution , chemistry , polymer chemistry , combinatorial chemistry , chemical engineering , inorganic chemistry , organic chemistry , pulmonary surfactant , biochemistry , engineering
The synthesis of hierarchically mesoporous polymers with multiple functionalities is challenging. Herein we reported a template‐free strategy for synthesis of phenolic azo‐polymers with hierarchical porous structures based on diazo‐coupling reaction in aqueous solution under mild conditions. The resultant polymers have surface areas up to 593 m 2 g −1 with the mesopore ratio of >80 %, and a good ability to complex with metal ions, such as Cu 2+ , Zn 2+ ,Ni 2+ , achieving a metal loading up to 26.24 wt %. Moreover, the polymers complexed with Zn showed excellent performance for catalyzing the reaction of CO 2 with epoxide, affording a TOF of 2570 h −1 in the presence of tetrabutyl ammonium bromide (7.2 mol %). The polymer complexed with Cu could catalyze the oxidation of alcohol with high efficiency.