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Using Lewis Acid Catalysts to Control the Ring-Opening Copolymerization for Polyester Synthesis and the Deconstruction of Polyethylene.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Using Lewis Acid Catalysts to Control the Ring-Opening Copolymerization for Polyester Synthesis and the Deconstruction of Polyethylene.
Author:	Manjarrez, Yvonne.
Published:	Ann Arbor : ProQuest Dissertations & Theses, 2023
Description:	92 p.
Notes:	Source: Dissertations Abstracts International, Volume: 85-02, Section: B.
Notes:	Advisor: Fieser, Megan E.
Contained By:	Dissertations Abstracts International85-02B.
Subject:	Chemistry.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30634096
ISBN:	9798380107358

Using Lewis Acid Catalysts to Control the Ring-Opening Copolymerization for Polyester Synthesis and the Deconstruction of Polyethylene.
Manjarrez, Yvonne.

Using Lewis Acid Catalysts to Control the Ring-Opening Copolymerization for Polyester Synthesis and the Deconstruction of Polyethylene. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 92 p.

Source: Dissertations Abstracts International, Volume: 85-02, Section: B.

Thesis (Ph.D.)--University of Southern California, 2023.

This item must not be sold to any third party vendors.

Although plastics (polymers) have become necessary for a variety of technologies and functions, their large consumption has led to negative impacts on the environment as well as resulted in a plastic pollution crisis. This urges a need to seek more environmentally friendly alternatives (aliphatic polyesters) to mass-produced plastics in order to combat this issue. An attractive route toward these polyesters is through the ring-opening copolymerization (ROCOP) of cyclic ethers (epoxides or THF) and cyclic anhydrides. This route allows access to a wide scope of monomers, thus potentially leading to a library of plastics with varying properties. Herein, Lewis acid catalysts that are metal-free or contain rare earth metal centers were employed for the targeted ROCOP. To further address the plastics issue, there is also a need to develop better methods to chemically recycled/upcycle currently mass-produced plastics. As polyethylene (PE) is one of the most widely consumed plastics, efforts described herein were directed towards using a Lewis acid catalyst (AlCl3 or rare earth metal salts) for the degradation of PE into the value-added products, diaryl alkanes. 

ISBN: 9798380107358Subjects--Topical Terms:

188628
Chemistry.
Subjects--Index Terms:

Lewis acids

Using Lewis Acid Catalysts to Control the Ring-Opening Copolymerization for Polyester Synthesis and the Deconstruction of Polyethylene.
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300 $a 92 p.
500 $a Source: Dissertations Abstracts International, Volume: 85-02, Section: B.
500 $a Advisor: Fieser, Megan E.
502 $a Thesis (Ph.D.)--University of Southern California, 2023.
506 $a This item must not be sold to any third party vendors.
520 $a Although plastics (polymers) have become necessary for a variety of technologies and functions, their large consumption has led to negative impacts on the environment as well as resulted in a plastic pollution crisis. This urges a need to seek more environmentally friendly alternatives (aliphatic polyesters) to mass-produced plastics in order to combat this issue. An attractive route toward these polyesters is through the ring-opening copolymerization (ROCOP) of cyclic ethers (epoxides or THF) and cyclic anhydrides. This route allows access to a wide scope of monomers, thus potentially leading to a library of plastics with varying properties. Herein, Lewis acid catalysts that are metal-free or contain rare earth metal centers were employed for the targeted ROCOP. To further address the plastics issue, there is also a need to develop better methods to chemically recycled/upcycle currently mass-produced plastics. As polyethylene (PE) is one of the most widely consumed plastics, efforts described herein were directed towards using a Lewis acid catalyst (AlCl3 or rare earth metal salts) for the degradation of PE into the value-added products, diaryl alkanes. 
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650 4 $a Chemistry. $3 188628
650 4 $a Polymer chemistry. $3 708579
650 4 $a Plastics. $3 182997
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653 $a Rare earth metals
653 $a Ring-opening copolymerization
653 $a Plastics issue
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