{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/114044"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/114044","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Ion transport and viscoelasticity of dynamic polymer network electrolytes","abstract":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-12-01","abstract_html":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-12-01","abstract_has_math":false,"creators":["Jing, Brian B."],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Materials Science & Engr","degree_department":null,"school":null,"contributors":["Evans, Christopher M","Sottos, Nancy R","Schwerizer, Kenneth S","Rogers, Simon A"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-04-29T21:58:15Z","date_published":"2022-04-29T21:58:15Z","updated_at":"2026-07-22T22:24:54Z","subjects":["Materials science"],"languages":["en","eng"],"rights":["Copyright 2021 Brian B. 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No. of bitstreams: 2 JING-DISSERTATION-2021.pdf: 14266513 bytes, checksum: bc60eac0568def275111d62d48ea9387 (MD5) LICENSE.txt: 4207 bytes, checksum: e26ded559ca8d0fb6bc945c24b23ef98 (MD5) Previous issue date: 2021-10-01","Embargo set by: Seth Robbins for item 123409 Lift date: 2024-04-29T21:58:46Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Author requested closed access (OA after 2yrs) in Vireo ETD system","Limited","Dynamic networks have strong potential to be one of the most influential materials in science. They are highly versatile due to having mechanical robustness and integrity, while also being malleable and degradable. Traditionally, these materials have been developed for self-healing and recycling applications. The work of this thesis demonstrates that these materials can be designed for functional applications such as ion transport. PEO-based boronic ester networks were synthesized and characterized as Li-conducting electrolytes. Systematic studies of salt concentration and linker length were investigated. As the linker length is varied, the effects of salt addition also vary. For 2EO and 4EO linker dynamic networks, the addition of salt has a more dramatic effect on the conductive and viscoelastic behavior, due to the formation of Lewis adducts which disrupt the crosslinking density of the networks. This results in the relaxation behavior to shift from an Arrhenius temperature dependence to a VFT dependence. Furthermore, these dynamic network electrolytes disobey the Walden Rule, as their conductivity and viscosity are uncorrelated. Vinylogous urethane dynamic networks doped with salt were also synthesized and investigated. Spectroscopy analysis revealed that the cation could coordinate with the vinylogous urethane moiety to facilitate exchange reactions."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Ion transport and viscoelasticity of dynamic polymer network electrolytes"]}]}],"canonical_facts":{"dc:contributor":["Evans, Christopher M","Sottos, Nancy R","Schwerizer, Kenneth S","Rogers, Simon A"],"dc:creator":["Jing, Brian B."],"dc:date":["2022-04-29T21:58:15Z","2024-04-29T21:58:46Z","2021-12","2021-10-01"],"dc:description":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-12-01","The student, Brian Jing, accepted the attached license on 2021-09-23 at 12:58.","The student, Brian Jing, submitted this Dissertation for approval on 2021-09-23 at 13:08.","This Dissertation was approved for publication on 2021-10-01 at 10:54.","DSpace SAF Submission Ingestion Package generated from Vireo submission #17138 on 2022-04-29 at 16:08:59","Made available in DSpace on 2022-04-29T21:58:15Z (GMT). No. of bitstreams: 2 JING-DISSERTATION-2021.pdf: 14266513 bytes, checksum: bc60eac0568def275111d62d48ea9387 (MD5) LICENSE.txt: 4207 bytes, checksum: e26ded559ca8d0fb6bc945c24b23ef98 (MD5) Previous issue date: 2021-10-01","Embargo set by: Seth Robbins for item 123409 Lift date: 2024-04-29T21:58:46Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Author requested closed access (OA after 2yrs) in Vireo ETD system","Limited","Dynamic networks have strong potential to be one of the most influential materials in science. They are highly versatile due to having mechanical robustness and integrity, while also being malleable and degradable. Traditionally, these materials have been developed for self-healing and recycling applications. The work of this thesis demonstrates that these materials can be designed for functional applications such as ion transport. PEO-based boronic ester networks were synthesized and characterized as Li-conducting electrolytes. Systematic studies of salt concentration and linker length were investigated. As the linker length is varied, the effects of salt addition also vary. For 2EO and 4EO linker dynamic networks, the addition of salt has a more dramatic effect on the conductive and viscoelastic behavior, due to the formation of Lewis adducts which disrupt the crosslinking density of the networks. This results in the relaxation behavior to shift from an Arrhenius temperature dependence to a VFT dependence. Furthermore, these dynamic network electrolytes disobey the Walden Rule, as their conductivity and viscosity are uncorrelated. Vinylogous urethane dynamic networks doped with salt were also synthesized and investigated. Spectroscopy analysis revealed that the cation could coordinate with the vinylogous urethane moiety to facilitate exchange reactions."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/114044"],"dc:language":["en","eng"],"dc:rights":["Copyright 2021 Brian B. Jing"],"dc:subject":["Materials science"],"dc:title":["Ion transport and viscoelasticity of dynamic polymer network electrolytes"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Materials Science & Engr"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:54Z"}