By Zhen-Zhen Yang
In this quantity, Professor He and his coworkers summarize polyethylene glycol (PEG)-promoted CO2 chemistry at the foundation of figuring out approximately section habit of PEG/CO2 method and response mechanism at molecular point. As PEG will be applied as a eco-friendly alternative for natural solvents, phase-transfer catalyst, surfactant, aid in a number of response structures, considerably selling catalytic job and improving dear steel catalysts, really considered as a CO2-philic fabric, the authors concentrate on distinct functions of PEG in CO2 seize and usage, together with PEG-functionalized catalysts for effective transformation of CO2 and PEG-functionalized absorbents for effective CO2 trap.
Furthermore, they describe carbon seize and usage process as a substitute method of deal with the strength penalty challenge in carbon seize and garage.
Interestingly, the authors additionally speak about PEG radical chemistry in dense CO2 as fairly artistic and strange use of PEG, possibly serves as a response medium and an intensive initiator for radical chemistry.
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Extra info for Capture and Utilization of Carbon Dioxide with Polyethylene Glycol
Choi K-M, Akita T, Mizugaki T et al (2003) Highly selective oxidation of allylic alcohols catalysed by monodispersed 8-shell Pd nanoclusters in the presence of molecular oxygen. New J Chem 27(2): 20. Uozumi Y, Nakao R (2003) Catalytic oxidation of alcohols in water under atmospheric oxygen by use of an amphiphilic resin-dispersion of a nanopalladium catalyst. Angew Chem Int Ed 42(2):194–197 21. Iwasawa T, Tokunaga M, Obora Y et al (2004) Homogeneous palladium catalyst suppressing Pd black formation in air oxidation of alcohols.
Pure Appl Chem 58(6):857–868 46. Totten GE, Clinton NA (1998) Poly(ethylene glycol) and derivatives as phase transfer catalysts. J Macromol Sci Rev 38(1):77–142 47. Totten GE, Clinton NA (1988) Poly[ethylene glycol] derivatives as phase transfer catalysts and solvents for organic reactions. J Macromol Sci Rev 28(2):293–337 48. Dartt CB, Davis ME (1994) Catalysis for environmentally benign processing. Ind Eng Chem Res 33(12):2887–2899 49. Naik SD, Doraiswamy LK (1998) Phase transfer catalysis: chemistry and engineering.
With regard to selectivity, secondary benzylic alcohols show higher selectivity toward ketone, while primary ones afford carboxylic acid as a dominant product. PEG/O2/CO2 system can also be utilized in benzylic C=C cleavage reactions. 18(e), R5 = H). Prolonging reaction time or higher oxygen concentrations favors deeper oxidation, resulting in significant increase in the yield of benzoic acid. 18(f)). 18. 18 The proposed pathways of organic reactions initiated by PEG radicals generated by thermal oxidative degradation  further form acetic acid or initiate substrates to generate relatively stable radicals.
Capture and Utilization of Carbon Dioxide with Polyethylene Glycol by Zhen-Zhen Yang