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

Authors: Šimonová Zuzana Frances

Year: 2023

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
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