{"679910":{"#nid":"679910","#data":{"type":"event","title":"PhD Defense by Joshua M. Rinehart","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETHE SCHOOL OF MATERIALS SCIENCE AND ENGINEERING\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EGEORGIA INSTITUTE OF TECHNOLOGY\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cstrong\u003EUnder the provisions of the regulations for the degree\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDOCTOR OF PHILOSOPHY\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003Ewill be held the\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDISSERTATION THESIS DEFENSE\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003Efor\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cstrong\u003EJoshua M. Rinehart\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAdvisors: Prof. John R. Reynolds and Prof. Shannon K. Yee\u003C\/strong\u003E\u003Cbr\u003E\u003Cstrong\u003E\u0026nbsp;\u0026nbsp;\u003C\/strong\u003E\u003Cbr\u003E\u003Cstrong\u003E\u201cTo Cleave or Not to Cleave: Side-Chain Design in Dioxythiophene Polymers\u201d\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003Eon\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EWednesday, February 5, 2025\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003Eat\u003C\/strong\u003E\u0026nbsp;\u003Cstrong\u003E2:00 PM\u003C\/strong\u003E\u003Cbr\u003E\u003Cstrong\u003Ein Manufacturing Related Disciplines Complex (MRDC) 4211\u003C\/strong\u003E\u003Cbr\u003E\u003Cstrong\u003Eand via\u003C\/strong\u003E\u0026nbsp;\u003Cstrong\u003ETeams:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/teams.microsoft.com\/l\/meetup-join\/19%3ameeting_ZGZmNDdhMjItZTUwZS00NDlhLWEyZWItNWYwMWFmMmFjYzVl%40thread.v2\/0?context=%7b%22Tid%22%3a%22482198bb-ae7b-4b25-8b7a-6d7f32faa083%22%2c%22Oid%22%3a%223e5fbba9-0a6e-4ae3-b5cf-29e8c5b9aaa2%22%7d\u0022 title=\u0022Meeting join link\u0022\u003E\u003Cstrong\u003EJoin the meeting now\u003C\/strong\u003E\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cstrong\u003E\u0026nbsp; Committee Members:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EProf. John R. Reynolds, CHEM\/MSE\u003C\/p\u003E\u003Cp\u003EProf. Shannon K. Yee, ME\u003C\/p\u003E\u003Cp\u003EProf. Mark Losego, MSE\u003C\/p\u003E\u003Cp\u003EProf. Jason Azoulay, CHEM\/MSE\u003C\/p\u003E\u003Cp\u003EProf. Ying Diao (UIUC), ChBE\/MSE\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EConjugated polymers are often lightweight, flexible, biocompatible, conductors of both ions and electrons, and solution-processable, making them prime materials for a variety of unique applications. Conjugated polymer side-chains promote solution processability, but also play a crucial role in solution aggregation, solid-state ordering, and determining polymer-electrolyte interactions. This thesis explores side-chain design in dioxythiophene polymers, helping to decipher how polymer design, processing, and electrolyte impact polymer ordering and mixed ionic-electronic transport.\u003C\/p\u003E\u003Cp\u003EIn this thesis defense, I will primarily describe the optimized synthesis of 3,4-propylenedioxythiophene polymers with side-chains that can be chemically removed post-processing. After solution printing, treatment of the films with a basic solution cleaves off the side-chains, resulting in a short alcohol or carboxylic acid functional groups capable of hydrogen-bonding. The mass and electronic transport during aqueous electrochemical doping for the polymers with alcohol or carboxylic acid groups is then compared to polymers with oligoether side-chains, which are more traditionally utilized.\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EI will also briefly highlight other thesis work. The synthesis of acyclic dioxythiophene polymers has been improved and used to investigate how side-chain polarity and side-chain substitution symmetry influences solution aggregation and crystallization. A newly developed regio-symmetric, amphiphilic acyclic dioxythiophene polymer is used to study how electrolyte properties impact electrochemical doping and mixed ionic-electronic transport. A recently developed in situ electrochemical X-ray scattering technique is used to understand how the polymer microstructure evolves during electrochemical doping.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003E\u201cTo Cleave or Not to Cleave: Side-Chain Design in Dioxythiophene Polymers\u201d\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"\u201cTo Cleave or Not to Cleave: Side-Chain Design in Dioxythiophene Polymers\u201d"}],"uid":"27707","created_gmt":"2025-01-23 20:30:29","changed_gmt":"2025-01-23 20:30:59","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2025-02-05T14:00:00-05:00","event_time_end":"2025-02-05T16:00:09-05:00","event_time_end_last":"2025-02-05T16:00:09-05:00","gmt_time_start":"2025-02-05 19:00:00","gmt_time_end":"2025-02-05 21:00:09","gmt_time_end_last":"2025-02-05 21:00:09","rrule":null,"timezone":"America\/New_York"},"location":"(MRDC) 4211 and via Teams:","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}