Synthesis, co-polymerization, and carbonization of Mono-ortho-diynylarene (MODA) and Bis-ortho-diynylarene (BODA) Monomers targeted for Carbon-Carbon Composites

Author

Solomon Tesfaye

Issuing Body

Mississippi State University

Advisor

Smith, Dennis W. Jr.

Committee Member

Wipf, David O.

Committee Member

Emerson, Joseph P.

Date of Degree

8-7-2020

Document Type

Graduate Thesis - Open Access

Major

Chemistry

Degree Name

Master of Science

College

College of Arts and Sciences

Department

Department of Chemistry

Abstract

High temperature polyarylene networks produced through the step-growth thermal cyclopolymerization of mono-ortho-diynylarene (MODA) and bis-ortho-diynylarene (BODA) monomers have been shown to produce high yielding glassy carbon once pyrolyzed at 1000 °C. In this study the homo- and co-polymerization of both monomers will be studied, and the effects of copolymer composition on the processability when applied to carbonization and carbon-carbon composites. The carbon products from these high temperature polymer matrices will also be characterized. MODA and BODA are prepared through a Sonogashira coupling reaction and are polymerized through a heat-initiated Bergman Cyclization reaction mechanism. This work seeks to show how BODA-MODA copolymers can attenuate current composite processing limitations, and improve mechanical properties while retaining high temperature properties including high carbon yields.

URI

https://hdl.handle.net/11668/18029

Comments

MODA||BODA||Carbon Carbon Composites||Polyarylene

Recommended Citation

Tesfaye, Solomon, "Synthesis, co-polymerization, and carbonization of Mono-ortho-diynylarene (MODA) and Bis-ortho-diynylarene (BODA) Monomers targeted for Carbon-Carbon Composites" (2020). Theses and Dissertations. 4199.
https://scholarsjunction.msstate.edu/td/4199