{"693908":{"#nid":"693908","#data":{"type":"event","title":"PhD Proposal by Farzad Gholami","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EFarzad Gholami\u003C\/strong\u003E\u003Cbr\u003EAdvisor: Prof. H. Jerry Qi\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003Ewill propose a doctoral thesis entitled\u003C\/em\u003E,\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cstrong\u003EAdvanced Polymer Materials for Additive Manufacturing:\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EProgrammable g-DLP 3D Printing and Circular Material Systems\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003EOn\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003EThursday, November 19 at 2:00 p.m.\u003Cbr\u003EMRDC 4211\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003Eand\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003Ca href=\u0022https:\/\/nam12.safelinks.protection.outlook.com\/?url=https%3A%2F%2Fgatech.zoom.us%2Fj%2F91461079813\u0026amp;data=05%7C02%7Cannouncements%40grad.gatech.edu%7Cae003f5297fb49a1ed3608df3b6808a9%7C482198bbae7b4b258b7a6d7f32faa083%7C1%7C0%7C639294990135718659%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C\u0026amp;sdata=4WyfB5MVq6MOFyn2InwNtIDcXHx7vAD%2B5u51B%2BJMHwk%3D\u0026amp;reserved=0\u0022\u003Ehttps:\/\/gatech.zoom.us\/j\/91461079813\u003C\/a\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EProf. H. Jerry Qi \u2013 School of Materials Science and Engineering (advisor)\u003C\/p\u003E\u003Cp\u003EProf. Rampi Ramprasad \u2013 School of Materials Science and Engineering\u003C\/p\u003E\u003Cp\u003EProf. Karl Jacob \u2013 School of Materials Science and Engineering\u003C\/p\u003E\u003Cp\u003EProf. Yuhang Hu \u2013 School of Mechanical Engineering\u003C\/p\u003E\u003Cp\u003EProf. Will Gutekunst \u2013 School of Chemistry \u0026amp; Biochemistry\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EPolymer additive manufacturing has advanced rapidly in geometric complexity, processing capability, and functional integration. However, important limitations remain in programming spatially varying properties within a single material and in improving the circularity of polymers used for 3D printing. My research addresses these challenges through two directions focused on grayscale digital light processing (g-DLP) and sustainable polymer systems for additive manufacturing. The first direction uses g-DLP to locally control photopolymerization and program variations in degree of cure, crosslink density, mechanical properties, and electrical conductivity within a single resin. Grayscale-controlled curing produces conductivity differences of approximately three orders of magnitude, enabling direct fabrication of embedded circuits and mechanical sensors without material exchange during printing. Because these functions rely on partially cured regions, their stability after printing is a critical challenge. A post-printing radical-scavenger treatment is developed to suppress continued polymerization under light and thermal exposure and preserve the programmed mechanical and functional contrast. The second direction addresses material circularity through both reuse of existing plastic waste and design of chemically recyclable polymers. Commodity plastic waste is cryogenically milled and incorporated into photocurable resins, with recycled powder contents reaching approximately 38.5 wt% through heated-vat processing and dual curing. A complementary \u03b4-lactone polyester platform is developed using \u03b4-dodecalactone and \u03b4-valerolactone, with polymer architecture tailored for DLP, direct ink writing, and fused filament fabrication. The printed materials retain a depolymerizable polyester backbone and enable approximately 94\u201397% monomer recovery across the different printing methods. These studies develop new routes for controlling functionality during printing while also addressing material use and end-of-life recovery in polymer additive manufacturing.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cbr\u003E\u003Cstrong\u003EAdvanced Polymer Materials for Additive Manufacturing:\u0026nbsp;\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EProgrammable g-DLP 3D Printing and Circular Material Systems\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":" Advanced Polymer Materials for Additive Manufacturing:  Programmable g-DLP 3D Printing and Circular Material Systems"}],"uid":"27707","created_gmt":"2026-11-09 17:13:07","changed_gmt":"2026-11-09 17:13:41","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-11-19T14:00:00-05:00","event_time_end":"2026-11-19T16:00:00-05:00","event_time_end_last":"2026-11-19T16:00:00-05:00","gmt_time_start":"2026-11-19 19:00:00","gmt_time_end":"2026-11-19 21:00:00","gmt_time_end_last":"2026-11-19 21:00:00","rrule":null,"timezone":"America\/New_York"},"location":"MRDC 4211","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"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":""}}}