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Macromolecular structure of coals. IV. Equilibrium swelling studies of coal networks subjected to various treatments
Author(s) -
Lucht Lucy M.,
Peppas N. A.
Publication year - 1987
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1987.070330812
Subject(s) - swelling , macromolecule , coal , chemistry , bituminous coal , chemical engineering , cleavage (geology) , materials science , hydrogen bond , polymer chemistry , organic chemistry , composite material , molecule , biochemistry , fracture (geology) , engineering
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.