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Date of Award

Spring 2024

Document Type

Masters Thesis

Department or Program Affiliation

Chemistry

Degree Name

Master of Science (MS)

Department

Chemistry

First Advisor

Larsen, Michael B.

Second Advisor

Murphy, Amanda R.

Third Advisor

Rider, David A. (Materials scientist)

Abstract

Styrenic carbodiimide (CDI) polymers have shown an interesting ability to form reversible polymer networks, known as covalent adaptable networks (CANs), through an uncatalyzed reaction with multifunctional amines. CANs have been a topic of interest in polymer chemistry due to their ability to be reprocessed, which is not found in classic thermoset polymer networks. However, not much is known about the capabilities of the nucleophilic addition of amines to aryl CDI repeat unit structures that goes into making these networks due to the understudied reactions involved. This thesis aims to develop a better understanding of the chemistry involved through various post polymerization modification (PPM) reactions and adjustments to the CDI polymer structure used in these specific CANs. The synthesis of polymer chains containing aryl CDI repeat unit structures and the reactions performed on said structures with full characterization will be presented. Rheological studies comparing various CANs generated from both sterically hindered CDI polymer structures and CDI polymers with differing comonomer compositions will be compared.

Type

Text

Keywords

Covalent adaptable networks, polymers, carbodiimide, post polymerization modification

Publisher

Western Washington University

OCLC Number

1439069954

Subject – LCSH

Carbodiimides; Carbodiimides--Synthesis; Polymers--Analysis; Polymerization

Format

application/pdf

Genre/Form

masters theses

Language

English

Rights

Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author’s written permission.

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