Honors College | Session 3

Title

Dynamic thiol-Michael bonds in poly(ionic liquid) polyester networks

Presenter Information

Samantha DaymonFollow

Academic Level at Time of Presentation

Senior

Major

Chemistry

Minor

Physics

List all Project Mentors & Advisor(s)

Kevin M. Miller

Presentation Format

Oral Presentation

Abstract/Description

Thiol-Michael bonds have recently been shown to exhibit dynamic, self-healing properties when incorporated into non-ionic, covalently crosslinked acrylic networks. Here, a dynamic thiol-Michael bond has been incorporated into a poly (ionic liquid) polyester network in order to gauge thermoresponsive behavior as a function of mechanical and conductive properties. Base-catalyzed carbon-Michael addition polymerization between an ionic liquid-containing acetoacetate monomer and a mixture of diacrylates (including one containing the ‘dynamic’ thiol-Michael bond) was employed to prepare the desired network films. Crosslink density and Tg were controlled primarily via the acrylate: acetoacetate monomer ration. To test the rehealing potential of the materials, the films were sliced, ‘rebonded’ and placed in a convection over at 100ºC

Spring Scholars Week 2018 Event

Honors College Senior Thesis Presentation

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Dynamic thiol-Michael bonds in poly(ionic liquid) polyester networks

Thiol-Michael bonds have recently been shown to exhibit dynamic, self-healing properties when incorporated into non-ionic, covalently crosslinked acrylic networks. Here, a dynamic thiol-Michael bond has been incorporated into a poly (ionic liquid) polyester network in order to gauge thermoresponsive behavior as a function of mechanical and conductive properties. Base-catalyzed carbon-Michael addition polymerization between an ionic liquid-containing acetoacetate monomer and a mixture of diacrylates (including one containing the ‘dynamic’ thiol-Michael bond) was employed to prepare the desired network films. Crosslink density and Tg were controlled primarily via the acrylate: acetoacetate monomer ration. To test the rehealing potential of the materials, the films were sliced, ‘rebonded’ and placed in a convection over at 100ºC