4-6.固体NMRと熱分解法を併用した石炭化学構造研究(Session(4)石炭構造研究のフロンティア)

概要

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In the course of studies on estimation of unit chemical structure of Akabira coal, the following points were suggested to be studied further: (1) molecular weight of extracts (2) chemical bonds linking aromatic clusters. As for molecular weight, light scattering method was employed to measure the M.W. of extracts and hydrogenation of extract was carried out under very mild conditions. This light scattering method was found not to be suitable for this kind of samples. GPC evaluated the M.W. of extracts to be Mn 418, Mw 903, and Mz 1620. As for chemical bonds, catalytically cracking of the coal was carried out under D_2 atmosphere, the results indicating that aliphatic long chain exists as free, linked with aromatic rings and inserted between aromatic rings. Based on the present results, the authors could refine the concept of previously proposed model structure concerning Akabira coal.
一般社団法人日本エネルギー学会の論文
1992-07-22