Internet Archive Scholar

Organocatalytic decomposition of poly(ethylene terephthalate) using triazabicyclodecene proposal ORGANOCATALYTIC DECOMPOSITION OF POLYETHYLENE TEREPHTHALATE USING TRIAZABICYCLODECENE Julien Matsumoto Lecuyer ALL RIGHTS RESERVED ORGANOCATALYTIC DECOMPOSITION OF POLYETHYLENE TEREPHTHALATE USING TRIAZABICYCLODECENE

Sjsu Scholarworks, Julien Lecuyer, Julien Lecuyer, Julien Lecuyer, Melanie Mcneil, Richard Chung, James Hedrick, Kazuki Fukushima
2010 unpublished

Preserved Fulltext

fulltext thumbnail
Web Archive Capture PDF (1.7 MB)
https://web.archive.org/web/20180506013909/http://scholarworks.sjsu.edu/cgi/viewcontent.cgi?article=4870&context=etd_theses

A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL. The file type is application/pdf.

ORGANOCATALYTIC DECOMPOSITION OF POLYETHYLENE TEREPHTHALATE USING TRIAZABICYCLODECENE This study focuses on the organocatalytic decomposition of polyethylene terephthalate (PET) using 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) to form a diverse library of aromatic amides. The reaction scheme was specifically designed to use low reaction temperatures (>150 o C) and avoid using solvents during the reaction to provide a more environmentally friendly process. Of all the amines tested, PET aminolysis
more » ... with aliphatic and aromatic amines demonstrated the best performance with yields higher than 72%. PET aminolysis with click functionalized and non-symmetric reagents facilitated attack on certain sites on the basis of reactivity. Finally, the performance of the PET degradation reactions with secondary amine and tertiary amine functionalized reagents yielded mixed results due to complications with isolating the product from the crude solution. Four of the PET-based monomers were also selected as modifiers for epoxy hardening to demonstrate the ability to convert waste into monomers for high-value applications. The glass transition temperatures, obtained using differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) of the epoxy composite samples treated with the PET-based monomers, were generally higher in comparison to the samples cured with the basic diamines due to the hydrogen bonding and added rigidity from the aromatic amide group. Developing these monomers provides a green and commercially viable alternative to eradicating a waste product that is becoming an environmental concern. v ACKNOWLEDGEMENTS
fatcat:wyqlxp22lzdt7ifnrdgzio53em
Citation

Sjsu Scholarworks, Julien Lecuyer, Julien Lecuyer, Julien Lecuyer, Melanie Mcneil, Richard Chung, James Hedrick, Kazuki Fukushima. "Organocatalytic decomposition of poly(ethylene terephthalate) using triazabicyclodecene proposal ORGANOCATALYTIC DECOMPOSITION OF POLYETHYLENE TEREPHTHALATE USING TRIAZABICYCLODECENE Julien Matsumoto Lecuyer ALL RIGHTS RESERVED ORGANOCATALYTIC DECOMPOSITION OF POLYETHYLENE TEREPHTHALATE USING TRIAZABICYCLODECENE." (2010)