13368-25-7Relevant articles and documents
Metalloporphyrin and Ionic Liquid-Functionalized Covalent Organic Frameworks for Catalytic CO2Cycloaddition via Visible-Light-Induced Photothermal Conversion
Ding, Luo-Gang,Yao, Bing-Jian,Wu, Wen-Xiu,Yu, Zhi-Gao,Wang, Xiao-Yu,Kan, Jing-Lan,Dong, Yu-Bin
, p. 12591 - 12601 (2021)
We report the construction of a porphyrin and imidazolium-ionic liquid (IL)-decorated and quinoline-linked covalent organic framework (COF, abbreviated as COF-P1-1) via a three-component one-pot Povarov reaction. After post-synthetic metallization of COF-P1-1 with Co(II) ions, the metallized COF-PI-2 is generated. COF-PI-2 is chemically stable and displays highly selective CO2 adsorption and good visible-light-induced photothermal conversion ability (ΔT = 26 °C). Furthermore, the coexistence of Co(II)-porphyrin and imidazolium-IL within COF-PI-2 has guaranteed its highly efficient activity for CO2 cycloaddition. Of note, the needed thermal energy for the reactions is derived from the photothermal conversion of the Co(II)-porphyrin COF upon visible-light irradiation. More importantly, the CO2 cycloaddition herein is a "window ledge"reaction, and it can proceed smoothly upon natural sunlight irradiation. In addition, a scaled-up CO2 cycloaddition can be readily achieved using a COF-PI-2@chitosan aerogel-based fixed-bed model reactor. Our research provides a new avenue for COF-based greenhouse gas disposal in an eco-friendly and energy- and source-saving way.
Effect of counterions on the self-assembly of polystyrene-polyphosphonium block copolymers
Hisey, Benjamin,Buddingh, Jasmine V.,Gillies, Elizabeth R.,Ragogna, Paul J.
, p. 14738 - 14747 (2017)
The ability to manipulate block copolymers on the nanoscale has led to many scientific and technological advances. These include nanoscale ordered bulk and thin films and also solution phase components; these are promising materials for making smaller ord
Reactive polymer zwitterions: Sulfonium sulfonates
Santa Chalarca, Cristiam F.,Emrick, Todd
, p. 83 - 92 (2016/11/29)
Sulfonium sulfonate, or sulfothetin, zwitterionic monomers were synthesized by ring-opening of 1,3-propanesultone with dialkyl sulfides containing styrenic or methacrylic moieties. Reversible addition-fragmentation chain-transfer polymerization of these m