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Macromolecular structure of coals. IV. Equilibrium swelling studies of coal networks subjected to various treatments

Authors

  • Lucy M. Lucht,

    1. School of Chemical Engineering, Purdue University West Lafayette, Indiana 47907
    Current affiliation:
    1. Lawrence Livermore Laboratory, Livermore, CA 94550
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  • N. A. Peppas

    Corresponding author
    1. School of Chemical Engineering, Purdue University West Lafayette, Indiana 47907
    • School of Chemical Engineering, Purdue University West Lafayette, Indiana 47907
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Abstract

The macromolecular network structure of the organic phase of bituminous coals was investigated with equilibrium swelling experiments at 35° and 60°C. It was determined that an oxygen-methylation technique led to cleavage of hydrogen bonds and significant increase of swelling. Pyridine preextraction led to significant differences in swelling due to partial incorporation in the network structure.

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