Functionalized 1,5,7-triazabicyclo [4.4.0] dec-5-ene (TBD) as Novel Organocatalyst for Efficient Depolymerization of Polyethylene Terephthalate (PET) Wastes | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

6937996

Reference Type

Journal Article

Title

Functionalized 1,5,7-triazabicyclo [4.4.0] dec-5-ene (TBD) as Novel Organocatalyst for Efficient Depolymerization of Polyethylene Terephthalate (PET) Wastes

Author(s)

Nica, S; Duldner, M; Hanganu, A; Iancu, S; Cursaru, B; Sarbu, A; Filip, P; Bartha, E; ,

Year

2018

Is Peer Reviewed?

Journal

Revista de Chimie
ISSN: 0034-7752
EISSN: 2668-8212

Publisher

CHIMINFORM DATA S A

Location

BUCHAREST

Page Numbers

2613-2616

Web of Science Id

WOS:000451925300003

Abstract

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.