ORCA General Poster Session (Virtual)

Title

Synthesis and Characterization of Ionic Liquid-Functionalized Cellulose

Presenter Information

Vanessa SmithFollow

Academic Level at Time of Presentation

Senior

Major

Pre-Veterinary Medicine

Minor

Biology and Chemistry

List all Project Mentors & Advisor(s)

Dr. Kevin Miller

Presentation Format

Poster Presentation

Abstract/Description

Structural polysaccharide biomacromolecules such as cellulose favor a hierarchical organization, held together by hydrogen bonds and van der Waals dispersion forces, which can exhibit useful and novel properties including ionic conduction. Although native cellulose conductivity is poor, one can enhance the conductive properties through the modification of the structure (hydration, composites, etc.). Transforming natural resources from their native state to a more usable form through synthetic modification, however, is non-trivial and is the subject of intense scientific scrutiny. In this presentation, we discuss our progress towards the synthesis and characterization of a series of ionic liquid functionalized cellulose derivatives. These novel polymerized ionic liquids (PILs) were prepared by employing an azide-alkyne 'click' strategy, followed by quaternization of the triazole ring to form an ionic liquid (triazolium) moiety. Variables included the alkyne used in the cyclization and the counteranion of the final IL-functionalized cellulose material. Polymers were characterized by IR and 1H NMR spectroscopy and thermal analysis of the materials will be discussed. These materials ultimately open the door to new a new class of biomaterials which could be utilized in various biosensors and similar devices.

Spring Scholars Week 2020 Event

Sigma Xi Poster Competition

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Synthesis and Characterization of Ionic Liquid-Functionalized Cellulose

Structural polysaccharide biomacromolecules such as cellulose favor a hierarchical organization, held together by hydrogen bonds and van der Waals dispersion forces, which can exhibit useful and novel properties including ionic conduction. Although native cellulose conductivity is poor, one can enhance the conductive properties through the modification of the structure (hydration, composites, etc.). Transforming natural resources from their native state to a more usable form through synthetic modification, however, is non-trivial and is the subject of intense scientific scrutiny. In this presentation, we discuss our progress towards the synthesis and characterization of a series of ionic liquid functionalized cellulose derivatives. These novel polymerized ionic liquids (PILs) were prepared by employing an azide-alkyne 'click' strategy, followed by quaternization of the triazole ring to form an ionic liquid (triazolium) moiety. Variables included the alkyne used in the cyclization and the counteranion of the final IL-functionalized cellulose material. Polymers were characterized by IR and 1H NMR spectroscopy and thermal analysis of the materials will be discussed. These materials ultimately open the door to new a new class of biomaterials which could be utilized in various biosensors and similar devices.