Asymmetric-based novel poly(ether-imide)s: Preparation, properties, kinetics of thermal decomposition, and study electrochemical oxidation behavior by using nanocomposite paste of polymer and multi-walled carbon nanotube

作者：Taghavi Mehdi; Ghaemy Mousa^*; Hassanzadeh Marjan

来源：High Performance Polymers, 2012, 24(4): 305-318.

DOI：10.1177/0954008312440469

• poly(ether-imide)
• nanocomposite
• electrochemical behavior
• kinetic study
• photophysical properties

A series of novel fluorescent poly(ether-imide)s (PEIs) bearing ether linkage and diarylimidazole pendant in the backbone was successfully prepared by polycondensation reaction between a new unsymmetrical diamine and commercially available tetracarboxylic acid dianhydrides. The PEIs were characterized by Fourier transform infrared, H-1-NMR, UV-vis spectroscopy, fluorimetry, scanning electron microscopy and elemental analysis. The PEIs with inherent viscosities in the range of 0.47-0.63 dL g(-1) showed excellent solubility in various aprotic solvents such as N-methylpyrrolidone, dimethyl sulfoxide, N,N-dimethylacetamide and N,N-dimethylformamide. Thermal properties of new PEIs were evaluated by differential scanning calorimetric and thermogravimetric analysis in N-2 and air. These polymers showed glass transition temperatures (T-g) in the range of 269-333 degrees C and 10% weight loss temperatures above 400 degrees C in air atmosphere. The data obtained from TGA experiments of these polymers have been applied in different kinetic equations such as Coats-Redfern, Kissinger and Criado methods, to determine the kinetic parameters (E, Delta S, Delta G, Delta H) and mechanism of thermal decomposition. Herein a method based on the adsorptive stripping cyclic voltammetry technique to investigate electrochemical oxidation of these polymers by using multi-walled carbon nano tubes modified glass electrode is also reported.

• 出版日期2012-6