Synthesis and Characterization of Crosslinked Polyimide Aerogels

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dc.contributor.advisorForgács, Attila
dc.contributor.advisorKalmár, József
dc.contributor.authorAdemi, Armela
dc.contributor.departmentDE--Természettudományi és Technológiai Kar--Kémiai Intézet
dc.date.accessioned2024-12-20T09:13:32Z
dc.date.available2024-12-20T09:13:32Z
dc.date.created2024-11-15
dc.description.abstractThis thesis details the fabrication and characterization of chemically imidized polyimide aerogels starting from diamines and diacid anhydrides, crosslinked with 1,3,5-benzene tricarbonyl chloride (BTC). Conventional characterization techniques involving Low-Voltage Scanning Electron Microscopy and Fourier-Transform Infrared Spectroscopy were applied to assess their morphology and chemical identity, respectively. Dynamic Mechanical Analysis (DMA) and thermal shrinkage tests were conducted to evaluate the thermal behavior of these materials. Additionally, the electrolyte uptake was tested in mediums of different pH, and Nuclear Magnetic Resonance (NMR) relaxometry studies were performed to gain insight into the hydration mechanism of polyimide aerogels. The focus on thermal and hydration properties is particularly relevant in light of recent advancements, where polyimide aerogels have been proposed as promising alternatives for battery separators, offering improved features of safety and efficiency.
dc.description.courseChemical Engineering
dc.description.degreeBSc/BA
dc.format.extent29
dc.identifier.urihttps://hdl.handle.net/2437/384091
dc.language.isoen
dc.rights.accessHozzáférhető a 2022 decemberi felsőoktatási törvénymódosítás értelmében.
dc.subjectpolyimide aerogels
dc.subjectthermal shrinkage
dc.subjectNMR Relaxometry
dc.subjectSEM
dc.subject.dspaceChemistry
dc.titleSynthesis and Characterization of Crosslinked Polyimide Aerogels
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