| Popis: |
Oxidative polycondensation of 8-oxyquinoline alcoholate by molecular oxygen has been accomplished at 323–371 K. Product compositions, structures and molecular weights were determined by elemental and chemical analyses, by gel permeation chromatography, and infra-red and ultra-violet spectroscopy. The process was found to yield oligomers comprising 8-oxyquinoline units. Optimum conditions for oxidative polycondensation and the main kinetic parameters of the process were established. It was shown that the process was autocatalytic and proceeded with an induction period. A mechanism for oligo(oxyquinoline) formation is proposed. It was found that the oligo(oxyquinoline) was thermally stable up to 573 K and its paramagnetic and semiconductor properties were studied. |
