Abstract
A polymeric analogue of bibenzyl, poly(1,4-dimethylenenaphthalene), has been subjected to coal liquefaction conditions, and the products have been analyzed by GC and field ionization mass spectrometry (FIMS) in order to assess the competition between spontaneous thermal scission of the weak central bonds and hydrogenolysis of the 97 kcal/mol alkyl-aryl linkages. Reaction for 1 h at 400 o C in tetralin, 9,10-dihydrophenanthrene, or 9,10-dihydroanthracene solvent systems results in complete solubilization, yielding product mixtures consisting primarily of varying amounts of low molecular weight oligomers of the starting polymers
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