PMID- 36142788
OWN - NLM
STAT- MEDLINE
DCOM- 20220926
LR  - 20220928
IS  - 1422-0067 (Electronic)
IS  - 1422-0067 (Linking)
VI  - 23
IP  - 18
DP  - 2022 Sep 17
TI  - Facile Construction of Carboxyl-Functionalized Ionic Polymer towards Synergistic 
      Catalytic Cycloaddition of Carbon Dioxide into Cyclic Carbonates.
LID - 10.3390/ijms231810879 [doi]
LID - 10879
AB  - The development of bifunctional ionic polymers as heterogeneous catalysts for 
      effective, cocatalyst- and metal-free cycloaddition of carbon dioxide into cyclic 
      carbonates has attracted increasing attention. However, facile fabrication of 
      such polymers having high numbers of ionic active sites, suitable types of 
      hydrogen bond donors (HBDs), and controlled spatial positions of dual active 
      sites remains a challenging task. Herein, imidazolium-based ionic polymers with 
      hydroxyl/carboxyl groups and high ionic density were facilely prepared by a 
      one-pot quaternization reaction. Catalytic evaluation demonstrated that the 
      presence of HBDs (hydroxyl or carboxyl) could enhance the catalytic activities of 
      ionic polymers significantly toward the CO(2) cycloaddition reaction. Among the 
      prepared catalysts, carboxyl-functionalized ionic polymer (PIMBr-COOH) displayed 
      the highest catalytic activity (94% yield) in the benchmark cycloaddition 
      reaction of CO(2) and epichlorohydrin, which was higher than 
      hydroxyl-functionalized ionic polymer (PIMBr-OH, 76% yield), and far exceeded 
      ionic polymer without HBDs groups (PIMBr, 54% yield). Furthermore, PIMBr-COOH 
      demonstrated good recyclability and wide substrate tolerance. Under ambient CO(2) 
      pressure, a number of epoxides were smoothly cycloadded into cyclic carbonates. 
      Additionally, density functional theory (DFT) calculation verified the formation 
      of strong hydrogen bonds between epoxide and the HBDs of ionic polymers. 
      Furthermore, a possible mechanism was proposed based on the synergistic effect 
      between carboxyl and Br(-) functionalities. Thus, a facile, one-pot synthetic 
      strategy for the construction of bifunctional ionic polymers was developed for 
      CO(2) fixation.
FAU - Chen, Ying
AU  - Chen Y
AD  - College of Environmental and Chemical Engineering, Dalian University, Dalian 
      116622, China.
AD  - Guizhou Provincial Key Laboratory of Coal Clean Utilization, School of Chemistry 
      and Materials Engineering, Liupanshui Normal University, Liupanshui 553004, 
      China.
FAU - Li, Yingjun
AU  - Li Y
AD  - College of Environmental and Chemical Engineering, Dalian University, Dalian 
      116622, China.
AD  - Guizhou Provincial Key Laboratory of Coal Clean Utilization, School of Chemistry 
      and Materials Engineering, Liupanshui Normal University, Liupanshui 553004, 
      China.
FAU - Wang, Hu
AU  - Wang H
AD  - Guizhou Provincial Key Laboratory of Coal Clean Utilization, School of Chemistry 
      and Materials Engineering, Liupanshui Normal University, Liupanshui 553004, 
      China.
FAU - Chen, Zaifei
AU  - Chen Z
AD  - Guizhou Provincial Key Laboratory of Coal Clean Utilization, School of Chemistry 
      and Materials Engineering, Liupanshui Normal University, Liupanshui 553004, 
      China.
FAU - Lei, Yi-Zhu
AU  - Lei YZ
AD  - College of Environmental and Chemical Engineering, Dalian University, Dalian 
      116622, China.
AD  - Guizhou Provincial Key Laboratory of Coal Clean Utilization, School of Chemistry 
      and Materials Engineering, Liupanshui Normal University, Liupanshui 553004, 
      China.
LA  - eng
GR  - 22162017/National Natural Science Foundation of China/
PT  - Journal Article
DEP - 20220917
PL  - Switzerland
TA  - Int J Mol Sci
JT  - International journal of molecular sciences
JID - 101092791
RN  - 0 (Carbonates)
RN  - 0 (Epoxy Compounds)
RN  - 0 (Polymers)
RN  - 08OOR508C0 (Epichlorohydrin)
RN  - 142M471B3J (Carbon Dioxide)
SB  - IM
MH  - *Carbon Dioxide/chemistry
MH  - Carbonates/chemistry
MH  - Cycloaddition Reaction
MH  - Epichlorohydrin
MH  - Epoxy Compounds/chemistry
MH  - *Polymers/chemistry
PMC - PMC9506212
OTO - NOTNLM
OT  - CO2 cycloaddition
OT  - bifunctional catalyst
OT  - cyclic carbonates
OT  - ionic polymers
COIS- There are no conflicts to declare.
EDAT- 2022/09/24 06:00
MHDA- 2022/09/28 06:00
PMCR- 2022/09/17
CRDT- 2022/09/23 01:26
PHST- 2022/08/31 00:00 [received]
PHST- 2022/09/08 00:00 [revised]
PHST- 2022/09/14 00:00 [accepted]
PHST- 2022/09/23 01:26 [entrez]
PHST- 2022/09/24 06:00 [pubmed]
PHST- 2022/09/28 06:00 [medline]
PHST- 2022/09/17 00:00 [pmc-release]
AID - ijms231810879 [pii]
AID - ijms-23-10879 [pii]
AID - 10.3390/ijms231810879 [doi]
PST - epublish
SO  - Int J Mol Sci. 2022 Sep 17;23(18):10879. doi: 10.3390/ijms231810879.