Microwave-assisted simultaneous novel synthesis of poly(dibromophenylene oxide)s, poly(diiodophenylene oxide)s (p), conducting(cp) and/or crosslinked (clp) and/or radical ion polymers (rip)

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2007
Çelik, Güler Bayraklı
Microwave-assisted novel synthesis of poly(dibromophenylene oxide) or poly(diiodophenylene oxide) (P), conducting polymer (CP) and/or crosslinked polymer (CLP) and/or radical ion polymer (RIP) were achieved simultaneously from lithium, sodium or potassium 2,4,6-bromophenolate or sodium 2,4,6-iodophenolate in a very short time interval. Polymerizations were carried out by constant microwave energy with different time intervals varying from 1 to 20 min; or at constant time intervals with variation of microwave energy from 70 to 900 watt; or varying the water content from 0.5 to 5 ml at constant time intervals and microwave energy. Poly(dihalophenylene oxide) and radical ion polymers were characterized by FTIR (Fourier Transform Infrared), 1H-NMR (Proton Nuclear Magnetic Resonance), 13C-NMR (Carbon-13 Nuclear Magnetic Resonance), TGA/ FTIR (Thermal Gravimetric Analysis / Fourier Transform Infrared), DSC (Differential Scanning Calorimeter), SEM (Scanning Electron Microscope), ESR (Electron Spin Resonance), GPC (Gel Permeation Chromatography), UV-Vis (UV-Visible Spectroscopy), Light Scattering and Elemental Analysis. Conducting and crosslinked polymers were characterized by FTIR, TGA/ FTIR, DSC, SEM, ESR, XRD (Powder Diffraction X-Ray) and Elemental Analysis. The effects of heating time, microwave energy and water content on the percent conversion and the polymer synthesis were also investigated.

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Citation Formats
G. B. Çelik, “Microwave-assisted simultaneous novel synthesis of poly(dibromophenylene oxide)s, poly(diiodophenylene oxide)s (p), conducting(cp) and/or crosslinked (clp) and/or radical ion polymers (rip),” Ph.D. - Doctoral Program, Middle East Technical University, 2007.