Ruan Xiaolin, Yue Dongmei, Yang Shangyuan, Guo Xihong, Dong Jinquan, Cui Rongli, Sun Baoyun
Beijing University of Chemical Technology, Beijing 100029, China.
J Nanosci Nanotechnol. 2012 Sep;12(9):7233-8. doi: 10.1166/jnn.2012.6435.
Different fullerene-grafted poly(N-vinylcarbazole) was synthesized by free radical polymerization and the influence of the amount of initiator, the reaction time and the reaction temperature on the polymerization was studied. Metallofullerene-grafted polymer (Gd@C82-PVK) was firstly synthesized and characterized by GPC, UV-vis, FTIR, DSC, XPS. The results demonstrated that the fullerenes had chemically combined with PVK. Fluorescence spectra suggested that the grafted fullerenes had certain influence on the fluorescence properties of the polymer. This is due to the better electron-attractive ability of fullerenes, which contributed a lot to form the electron donor-acceptor systems in fullerene-grafted poly(N-vinylcarbazole). Potential applications of this kind of materials in optical and memory devices were expected.
通过自由基聚合反应合成了不同的富勒烯接枝聚（N-乙烯基咔唑），并研究了引发剂用量、反应时间和反应温度对聚合反应的影响。首次合成了金属富勒烯接枝聚合物（Gd@C82-PVK），并通过凝胶渗透色谱（GPC）、紫外可见光谱（UV-vis）、傅里叶变换红外光谱（FTIR）、差示扫描量热法（DSC）、X射线光电子能谱（XPS）对其进行了表征。结果表明，富勒烯与聚（N-乙烯基咔唑）发生了化学结合。荧光光谱表明，接枝的富勒烯对聚合物的荧光性能有一定影响。这是由于富勒烯具有较好的吸电子能力，这对在富勒烯接枝聚（N-乙烯基咔唑）中形成电子供体-受体体系有很大贡献。预计这类材料在光学和存储器件中有潜在应用。
