1-5. Study on the Aggregation States of Coal Molecules at Solid State

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概要

• 論文の詳細を見る

• Pyridine insoluble extract fraction (PI-0) obtained from CS_2/NMP mixed solvent (1:1 by volume) extraction of Upper Freeport coal is partially insoluble in the mixed solvent. But in the presence of tetrabutylammoniumacetate (TBAA), PI-0 became almost completely soluble in the mixed solvent and NMP. After removal of the solvents and TBAA from the solution, the recovered PI (PI-1) was found to be completely soluble in the mixed solvent and NMP. The difference of solubility between PI-0 and PI-1 was attributed to their different aggregation states. FTIR, XRD, DSC and thermomechanical analysis (TMA) were employed to characterize the two solid PIs with different aggregation states. The results suggest that PI-1 is a less aggregated structure compared to PI-0.

• 一般社団法人日本エネルギー学会の論文
• 2001-07-31

著者

• Shui Hengfu

  東北大

• Shui H

  東北大

• Norinaga Koyo

  東北大

• Iino Masashi

  東北大

• Norinaga K

  東北大

関連論文

• 15. Viscoelastic Properties and Adsorption Behaviors of Two Coal Soluble Constituents with Different Solubility in N-Methyl-2-pyrrolidinone
• Mechanical of Coal Solubility Increase in NMP-CS_2 Mixed Solvents by Adding TCNE
• 1-5. Study on the Aggregation States of Coal Molecules at Solid State
• 18. Effect of Tetrabutylammonium Acetate Addition on the Aggregation of Caol Soluble Constituents

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