Cover Picture: A Diagonal Approach to Chemical Recycling of Carbon Dioxide: Organocatalytic Transformation for the Reductive Functionalization of CO2 (Angew. Chem. Int. Ed. 1/2012)

2011 ◽  
Vol 51 (1) ◽  
pp. 1-1 ◽  
Author(s):  
Christophe Das Neves Gomes ◽  
Olivier Jacquet ◽  
Claude Villiers ◽  
Pierre Thuéry ◽  
Michel Ephritikhine ◽  
...  
2011 ◽  
Vol 51 (1) ◽  
pp. 187-190 ◽  
Author(s):  
Christophe Das Neves Gomes ◽  
Olivier Jacquet ◽  
Claude Villiers ◽  
Pierre Thuéry ◽  
Michel Ephritikhine ◽  
...  

2011 ◽  
Vol 124 (1) ◽  
pp. 1-1 ◽  
Author(s):  
Christophe Das Neves Gomes ◽  
Olivier Jacquet ◽  
Claude Villiers ◽  
Pierre Thuéry ◽  
Michel Ephritikhine ◽  
...  

2011 ◽  
Vol 124 (1) ◽  
pp. 191-194 ◽  
Author(s):  
Christophe Das Neves Gomes ◽  
Olivier Jacquet ◽  
Claude Villiers ◽  
Pierre Thuéry ◽  
Michel Ephritikhine ◽  
...  

2020 ◽  
Vol 22 (23) ◽  
pp. 8298-8307
Author(s):  
Leticia Peña Carrodeguas ◽  
Thomas T. D. Chen ◽  
Georgina L. Gregory ◽  
Gregory S. Sulley ◽  
Charlotte K. Williams

Efficient polymerization catalyses transform bio-sourced monomers into thermoplastics with high elasticity and strength, which can be degraded to allow for chemical recycling. The plastics utilize carbon dioxide, limonene oxide and ε-decalactone.


2021 ◽  
Author(s):  
Rachel Rapagnani ◽  
Rachel Dunscomb ◽  
Alexandra Fresh ◽  
Ian Tonks

Carbon dioxide is inexpensive and abundant, and its prevalence as waste makes it attractive as a sustainable chemical feedstock. Although there are examples of copolymerizations of CO2 with high-energy monomers, the direct copolymerization of CO2 with olefins has not been reported. Herein, an alternate route to tunable, recyclable polyesters derived from CO2 and butadiene via an intermediary lactone, 3-ethyl-6-vinyltetrahydro-2H-pyran-2-one, is described. Catalytic ring-opening polymerization of the lactone by 1,5,7-triazabicyclo[4.4.0]dec-5-ene yields polyesters with molar masses up to 13.6 kg/mol and pendent vinyl sidechains that can undergo post-polymerization functionalization. The polymer has a low ceiling temperature of 138 ºC, allowing for facile chemical recycling. These results mark the first example of a well-defined polyester derived solely from CO2 and olefins, expanding access to new feedstocks that were once considered unfeasible.


2020 ◽  
Vol 1 (1) ◽  
pp. 1-22 ◽  
Author(s):  
Paul McKeown ◽  
Matthew D. Jones

Plastics are an indispensable material with numerous benefits and advantages compared to traditional materials, such as glass and paper. However, their widespread use has caused significant environmental pollution and most plastics are currently nonrenewable. Biobased polymers represent an important step for tackling these issues, however, the end-of-life disposal of such materials needs to be critically considered to allow for a transition to a circular economy for plastics. Poly(lactic acid) (PLA) is an important example of a biobased polymer, which is also biodegradable. However, industrial composting of PLA affords water and carbon dioxide only and in the natural environment, PLA has a slow biodegradation rate. Therefore, recycling processes are important for PLA, particularly chemical recycling, which affords monomers and useful platform chemicals, maintaining the usefulness and value of the material. This review covers the different methods of PLA chemical recycling, highlighting recent trends and advances in the area.


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