Stefan, Mihaela C.2018-08-152018-08-152017-082017-08August 201http://hdl.handle.net/10735.1/5947The goal of my thesis is to explore the limitations of three-dimensional printing on elastomeric block copolymers containing poly(3-hexylthiophene) by studying the extrusion of polyisoprene-b-polystyrene-b-poly(3-hexylthiophene). The triblock copolymer was synthesized through an anionic coupling mechanism from an allyl-terminated poly(3-hexylthiophene) and polyisoprene-b-polystyrenyl anion. The triblock copolymer was characterized with 1H NMR, size exclusion chromatography (SEC), and bottom-gate bottom-contact organic field effect transistors (OFET). The material was successfully synthesized and purified and contained 9 mole% poly(3-hexylthiophene), 68 mole% polyisoprene, and 23 mole% polystyrene. Although the material exhibited relatively low mobility, it was readily extruded with a custom pneumatic extruder at room temperature. The results legitimize the potential use of this material for three-dimensional printing applied in flexible electronics.application/pdfen©2017 The Author. Digital access to this material is made possible by the Eugene McDermott Library. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.Three-dimensional printingFlexible electronicsTriblock copolymersPoly(3-hexylthiophene)Thesis2018-08-15