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Synthesis of a hypercrosslinked, ionic, mesoporous polymer monolith and its application in deep oxidative desulfurization
Author(s) -
Jiang Bin,
Sun Zhaoning,
Zhang Luhong,
Sun Yongli,
Zhang Hongjie,
Yang Huawei
Publication year - 2018
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.46280
Subject(s) - monolith , flue gas desulfurization , ethylene oxide , mesoporous material , propylene oxide , materials science , hydrogen peroxide , catalysis , polymer , oxide , polymer chemistry , chemical engineering , copolymer , chemistry , organic chemistry , composite material , engineering , metallurgy
In this study, we used a facile and scalable strategy to produce a hypercrosslinked, ionic, mesoporous polymer monolith (HCIMPM). On the basis of structure‐directing polymeric crosslinking, the interconnected nanonetwork was formed through the in situ crosslinking of the homopolymer poly(vinyl imidazole) via a quaternization reaction, and its textural properties could be effectively adjusted by the block copolymer poly(ethylene oxide)‐block‐poly(propylene oxide)‐block‐poly(ethylene oxide)(PEO 20 PPO 70 PEO 20 ). The maximum specific surface area and pore volume were 212 m 2 /g and 1.08 cm 3 /g, respectively. Furthermore, the synthetic framework could be functionalized via the loading of PW 12O 40 3 −through ion exchange. The obtained HCIMPM with PW 12 O 40 3− (PW‐HCIMPM) was applied in the oxidative desulfurization, and approximately 100% sulfur removal could be achieved in the model oil with hydrogen peroxide (30 wt %) as an oxidant. Moreover, the solid catalyst could be recovered readily and recycled at least six times without a significant decrease in the desulfurization efficiency. As for real diesel, we also observed that almost all of the original sulfur compounds could be converted in 120 min. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46280.