Conductivity and carbon dioxide absoprtion of ionenes prepared by thiol-ene photopolymerization

Project Abstract

Thiol-ene photopolymerization remains an effective way by which thiols and unsaturated bonds (alkenes, alkynes) can be "clicked" together. Prior work from our research team has demonstrated that multi-functional alkenes and alkynes bearing an ionic liquid group (imidazolium, phosphonium) can be polymerized in the presence of a multi-functional thiol, creating covalently crosslinked ionene networks. In this work, we precisely control the distance between crosslinks through the synthesis of bisallyl-functionalized monomers bearing one or two imidazolium groups (with the same counteranion) and their subsequent polymerization with the multi- functional thiol PTMP. By controlling the distance between crosslinks, as well as the crosslink density, the latter of which occurs by manipulating the thiol:ene functional group ratio, a series of flexible ionene networks were prepared. Trends in thermal (T g ) and mechanical (E', crosslink density) properties of these thermosets will be presented as well as correlations between conductivity and architectural changes in the networks. Additionally, the capability of these materials to absorb carbon dioxide was examined using a quartz crystal microbalance (QCM) technique.

Conference

Conference Name (full, no abbreviations): National Meeting of the American Chemical Society

Dates: 8/18/24-8/22/24

Sponsoring Body: American Chemical Society

Conference Website: https://www.acs.org/meetings/acs-meetings/fall.html

Funding Type

Travel Grant

Academic College

Jesse D. Jones College of Science, Engineering and Technology

Area/Major/Minor

Biology/Chemistry/Spanish

Degree

BS in Biology with Honors

Classification

Senior

Name

Kevin Miller, PhD

Academic College

Jesse D. Jones College of Science, Engineering and Technology

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