Date

2002

Author

Şanlı, Pınar

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In this study, synthesis and characterization of poly(dibromophenylene oxide)s though thermal decomposition of bis(2,4,6-tribromophenolato)di(N- methyl imidazole) Cu(II), bis(2,4,6-tribromophenolato)di(N-methyl illimidazole)Co(II) and bis(2,4,6-tribromophenolato)di(N-methyl imidazole)Ni(II) complexes in solid state was examined. For the characterization of complexes FTIR, DSC, mass spectroscopy, magnetic susceptibility and C, H,N elemental analysis were performed. Syntheses of the polymer were achieved by the thermal decomposition of the synthesized complexes in solid state. Polymerizations were carried out at two different conditions. In the first condition, time kept constant at 3 hours and temperature was varied 100 and 250 C. In the second condition, temperature kept constant at maximum conversion temperature and time varied from 3 to 48 hours. Synthesized polymers were characterized by FTIR, 'H-NMR, 13C-NMR, DSC and viscometric measurements. At the end of the study, it was observed that, percent conversion and the intrinsic viscosity of the polymeric product depend on polymerization condition and the type of the transition metal. All of the polymeric products have high glass transition temperatures indicating that they are rigid polymers.

Subject Keywords

Poly(dibromophenylene oxide), Transition metal complexes, Thermal decomposition, Solid state polymerization

URI

https://hdl.handle.net/11511/12368

Collections

Graduate School of Natural and Applied Sciences, Thesis