Design, Synthesis Of Coronene And Its Deviations & Studies On Their UV Fluorescence Capability

As an important fluorescence material, coronene and its deviations had attracted much attention. Especially in recent years, coronene and its deviations are found that they were suitable candidates of organic fluorescence materials to make Ultraviolet Charge Coupled Devices (UV-CCD). However, the jobs of synthesizes of coronene and its deviations were so difficult that their researches were badly prevented. Meanwhile, the performance of coronene and its deviation as the organic fluorescence materials of UV-CCD should be also improved. In this dissertation, coronene and its deviation have been designed and synthesized, and their UV fluorescence performances have been studied. A series of useful and creative results have been obtained.Coronene, perylene and their deviations have been designed and synthesized in this paper. Using the microwave irradiation, coronene and perylene have been obtained easily. Comparing with the reference, this method using the microwave irradiation made synthesizes of coronene and perylene more easy and convenient. At the base of synthesizes of coronene and perylene, their vinyl-deviations were prepared through three reactions of acetylation, deoxidize, and dehydration, which provide the condition for their polymeration. In the meantime, we studied various kinds of reactions and some suitable theoretic explanations were given to these reaction phenomenons.Coronene or perylene was blended into polymer matrices such as thepolymethylmethylacrylate (PMMA), modified polymethylmethylacrylate (MPMMA) or polyethylene alcohol (PEA) with different concentrations. Under the certain condition, we used the fluorescence emission peaks to evaluate various material systems. The results showed that the blends had the maximum fluorescence intensity at the blended concentration of 4 % (w.t). This fluorescence intensity should be as 6 or 12 times as the intensity of pure coronene or perylene. At the end, through spreading these blends on image detectors, organic image detectors with good ultraviolet photoelectricity capability were prepared. By using these entirely new materials as well as procedures, there is the prospect of making UV-CCD with excellent performance.