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自1990年Kr(?)tschmer等报道常规量C_(60)的制备方法以来,富勒烯(球烯)的研究进展令世人瞩目.目前球烯的制备主要利用石墨经电弧蒸发,然后用合适的溶剂来抽提所得烟灰中含有的富勒烯.在烟灰中除含有C_(60)和C_(70)之外,同时还含有少量C_(76),C_(78),C_(84),C_(96)等一系列高碳系列的球烯.因此寻找经济、高效的方法来分离系列球烯,特别是得到含量很少的高碳系列球烯,是当前研究的重点之一.利用球烯独特的结构以及其在不同溶剂中的溶剂效应和不同溶解度,有可能通过抽提、溶解、重结晶等一系列步骤,达到分离和纯化球烯化合物的目的.因此研究球烯在不同溶剂中的溶解特性是必要的.这方面的工作已有一些初步的研究.
The research progress of fullerenes (neoprene) has attracted worldwide attention since Kr (?) Tschmer et al. Reported the preparation of conventional C_ (60) in 1990. At present, the preparation of neoprene mainly utilizes the arc evaporation of graphite, Of the solvent to extract the fullerenes contained in the resulting soot.In addition to containing C_ (60) and C_ (70) in addition to a small amount of C_ (76), C_ (78), C_ C_ (96) and a series of high-carbon series of n-olefins.Therefore, looking for an economical and efficient method to separate series of n-olefins, especially to get a little content of high-carbon series of n-olefins, is one of the focuses of the current study. The unique structure of the alkene and its solvent effect and different solubility in different solvents make it possible to separate and purify the alkene compounds through a series of steps such as extraction, dissolution, recrystallization, etc. Therefore, Of the dissolution characteristics is necessary in this area has been some preliminary study.