| Fullerene-containing polymers, which have been an increasing interest for many years, are expected to have potential applications such as effective solar cells, photovoltaic devices, conductive materials, optical devices, chemical sensors, electroluminescent cells, polymer grid triodes, photolithography and so on. Scientists choose the C60-polymer system not only due to the good electron-accepting ability of C6o, sometimes, but also due to the small reorganization energy, significant acceleration of charge separation step and effective deceleration of energy wasting charge recombination step. C6o has emerged as a novel three-dimensional acceptor and has been extensively studied for the construction of efficient electron transfer model systems.So far, the donor-acceptor (D-A) systems based on fullerene and PS, PPV or other molecules have been observed. However, little attention was paid to the polymers containing metallofullerenes. To our knowledge, the metallofullerene-containing polymer has indeed not been reported by now. Compared to C6o, endohedral metallofullerenes have attracted considerable interest as promising spherical molecules for material and biomedical applications, because of their unique properties that are unexpected from empty fullerenes. Metallofullerenes are generally more reactive, either thermally or photochemically than empty fullerenes. They will also become an important nanostructure material for future nanoscaled-electronic devices, because the band gaps of metallofullerenes can be varied between 1.0V and 0.2V depending on the fullerene size, the kind of metal atoms and the number of metal atoms encapsulated. Scientists have demonstrated that Gd@C82(OH)22 has efficiently scavenged superoxide radical anion, hydroxyl radical and singlet oxygen. This ability may be attributed to the larger electron affinity. For instance, the electron affinity for C6o and Gd@C82 was proved to be 2.7eV and 3.3±0.1eV, respectively. Therefore, endohedral metallofullerenes have shown greater promise for using as "radical sponges". However, the radical-scavenging ability of metallofullerene during the polymerization has never been reported.Importantly, a number of conjugated fullerene-polymers are known to exhibit ultrafast photoinduced charge transfer, with a back transfer that is orders of magnitude slower. C60 has shown very high electron mobility of up to 1cm 2V-1 s-1 in field-effect transistors. As to metallofullerene, the similar spherical structure enables these materials to possess similar properties with C60.However, compared to empty fullerenes, the higher electron affinity and superior ability to transport charges make metallofullerenes the best acceptor component currently available for fullerene-containing polymers. Therefore, these properties might make metallofullerene-containing polymers more important candidates for novel solar cells, photovoltaic devices and data memory devices.In this paper, we carried out metallofullerene Gd@Cg2 as acceptor together with the donor styrene to investigate the polymerization behavior of this material and synthesized a series of metallofullerene-containing polymers. The mechanism, properties and structure of Gd@C82-containing copolymers were discussed by GPC, FTIR,13C-NMR, CV/DPV, XPS/NEXAFS, AFM/SEM, TGA/DSC analysis. This approach offers a new possibility of optimizing the polymer performance with metallofullerene.In chapter 1, the progress in the research of fullerene modified polymer derivatives was reviewed. The characteristic structure and properties of Gd@Cg2 and the recent achievements in the polymerization and functional materialization of C6o were summarized.In chapter 2, experimental section including instrument, reagent and experimental details was described.In chapter 3, the optimum experimental conditions were found. The Gd@Cg2-PS series were synthesized and the structure of these copolymers was confirmed by a variety of characterization such as GPC, FTIR,13C-NMR, UV-Vis, TGA, DSC, CV, DPV, XPS, SEM, AFM.In chapter 4, the structures and properties of metallofullerene derivatives Gd@C82-PS were concluded.
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