Xu, Zhen2022-12-092022-12-092022-12-08vt_gsexam:35655http://hdl.handle.net/10919/112830ETDenIn CopyrightPolyetherimidepolystyrenepolyethylenepolypropylenemodificationdegradationupcyclingModification and Upcycling of Polyetherimide, Polystyrene, Polyethylene, and Polypropylene Dissertation