Univerzita Pardubice Fakulta chemicko- technologická

Univerzita Pardubice

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Publikace detail

Triethylamine as a highly efficient catalyst for the chemical imidization of polyimides

Autoři: Šimonová Zuzana Frances

Rok: 2023

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	Triethylamine as a highly efficient catalyst for the chemical imidization of polyimides	Polyimides (PI) are group of polymers with excellent properties including thermo-oxidation stability, radiation resistance, and excellent mechanical properties. They are used as advanced materials in optoelectronics, biomedicine, sensors and many other applications. Typically, polyimides are synthesized through a two-step reaction. In the first step, a polyamic acid (PAA) is prepared by the reaction of diamine and dianhydride. The PAA is then converted into polyimide via intramolecular cyclization (imidization) in the second step. Imidization can be performed thermally at high temperatures (>300 °C) or chemically using catalysts. For chemical imidization, three catalysts–triethylamine (TEA), quinoline (QL), and 1,4-diazabicyclo(2.2.2.)octane (DABCO), and three different temperatures (120 °C, 140 °C, and 160 °C) were selected.	Polyimides; imidization; triethylamine