Date of Award
Winter 8-2022
Degree Type
Dissertation
Degree Name
Doctor of Philosophy (PhD)
School
Polymer Science and Engineering
Committee Chair
Dr. Jeffrey S. Wiggins
Committee Chair School
Polymer Science and Engineering
Committee Member 2
Dr. Derek L. Patton
Committee Member 2 School
Polymer Science and Engineering
Committee Member 3
Dr. Sarah E. Morgan
Committee Member 3 School
Polymer Science and Engineering
Committee Member 4
Dr. Yoan C. Simon
Committee Member 4 School
Polymer Science and Engineering
Committee Member 5
Dr. Sergei I. Nazarenko
Committee Member 5 School
Polymer Science and Engineering
Abstract
In this dissertation, a new one-pot synthesis method is developed to produce high-purity aryl ether ketone (AEK) diamines of interest. Novel benzoxazine monomers are then synthesized from the AEK diamines. The cure kinetics are investigated via DSC, and a proper cure protocol is suggested. The change in Tg of the novel benzoxazines after sequential post-cures is reported showing how important cure protocol is on the final network properties. Additionally, TGA is used to determine the char yield of the AEK benzoxazines. Finally, XPS is utilized to analyze the sure of the surface of the AEK benzoxazine. It was found that there are significant changes to the atomic concentration of the AEK benzoxazine after post-curing.
Furfurylamine-based benzoxazines (FuBOX) blends were synthesized using a continuous high-shear reactor (CHSR). The thermo-rheological properties of each blend were investigated to down-select a processable blend that retained a Tg and char yield. The down-selected blend was scaled up using a pilot-scale CSHR. The FuBOX blend was used to manufacture Carbon fiber reinforced polymer (CFRP) and carbon-carbon (C/C) composite. The mechanical and flame characteristics of the composites are discussed.
ORCID ID
0000-0001-5414-8340
Copyright
Joseph Scott Murphy, 2022
Recommended Citation
Murphy, Joseph, "Aryl Ether Ketone Polybenzoxazines and Carbon-Carbon Composites from Furan-Containing Polybenzoxazines" (2022). Dissertations. 2058.
https://aquila.usm.edu/dissertations/2058
Included in
Polymer and Organic Materials Commons, Polymer Chemistry Commons, Polymer Science Commons