Functionalized 1,5,7-triazabicyclo [4.4.0] dec-5-ene (TBD) as Novel Organocatalyst for Efficient Depolymerization of Polyethylene Terephthalate (PET) Wastes
| Autor: | Simona Nica, Stela Iancu, Monica Duldner, Andrei Sarbu, Anamaria Hanganu, Emeric Bartha, Petru Filip, Bogdan Cursaru |
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| Rok vydání: | 2018 |
| Předmět: |
Process equipment
010405 organic chemistry Depolymerization Materials Science (miscellaneous) Process Chemistry and Technology General Engineering General Chemistry General Medicine 010402 general chemistry 01 natural sciences General Biochemistry Genetics and Molecular Biology 0104 chemical sciences chemistry.chemical_compound chemistry Petrochemistry Materials Chemistry Polyethylene terephthalate Organic chemistry General Pharmacology Toxicology and Pharmaceutics Ene reaction |
| Zdroj: | ResearcherID |
| ISSN: | 2668-8212 0034-7752 |
| DOI: | 10.37358/rc.18.10.6591 |
| Popis: | Poly(ethyleneterephthalate) waste was efficiently depolymerized through glycolysis and aminolysis reactions in the presence of functionalized 1,5,7-triazabicyclo [4.4.0] dec-5-ene (TBD) catalyst. The new catalyst of monoamide-ester type, was synthesized through reaction of dimethylterephthalate (DMT) with TBD in refluxing benzene. It was developed as a consequence of the mechanistic investigations of the transesterification reaction of isosorbide with DMT. To test the stability of functionalized TBD compound towards possible amide bond breakage, reactions with primary and secondary glycols as well as primary amines were performed when only the carboxymethyl group reacted. Moreover, it was found that the depolymerization of poly(ethyleneterephthalate) wastes proceeds faster in the presence of this novel organocatalyst by comparison with the hygroscopic TBD precursor. |
| Databáze: | OpenAIRE |
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