Journal ArticleDOI
Macromolecular structure of coals. 9. Molecular structure and glass transition temperature
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In this paper, the temperature de transition vitreuse d'echantillons de charbon de differentes teneurs en carbone, par calorimetrie differentielle a balayage.Abstract:
Determination de la temperature de transition vitreuse d'echantillons de charbon de differentes teneurs en carbone, par calorimetrie differentielle a balayage. Les echantillons sont utilises tels quels ou extraits a la pyridineread more
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Journal ArticleDOI
A Distributed Reactivity Model for Sorption by Soils and Sediments. 10. Relationships between Desorption, Hysteresis, and the Chemical Characteristics of Organic Domains.
Weilin Huang,Walter J. Weber +1 more
TL;DR: In this article, the authors measured phenanthrene sorption and desorption equilibria for 10 natural sorbents having significantly different geological ages and organic matter compositions, including three geologically young peats, one humic acid, three geologists old shales, and samples of kerogen isolated from each of the shales.
Journal ArticleDOI
A distributed reactivity model for sorption by soils and sediments. 8. Sorbent organic domains : Discovery of a humic acid glass transition and an argument for a polymer-based model
TL;DR: In this paper, the existence of a glass transition point in a humic acid by differential scanning calorimetry has been revealed, and the transition point has been analyzed using a set of water-wet and desiccator-dry specimens.
Journal ArticleDOI
Detailed Sorption Isotherms of Polar and Apolar Compounds in a High-Organic Soil
Guoshou Xia,Joseph J. Pignatello +1 more
TL;DR: Sorption isotherms of 13 apolar liquids and solids and polar solids used to evaluate a polymer- based model for natural organic matter show linear-scale inflection consistent with the presence of flexible (deformable) porosity as predicted by the glassy polymer-based Extended Dual-Mode Model (EDMM).
Journal ArticleDOI
Estimation of Hydrogen Bond Distribution in Coal through the Analysis of OH Stretching Bands in Diffuse Reflectance Infrared Spectrum Measured by in-Situ Technique
TL;DR: In this article, a new method was presented to estimate the strength distribution of hydrogen bonds in coal using the in-situ diffuse reflectance IR Fourier transform (DRIFT) technique with neat, undiluted, coal samples.
Book ChapterDOI
The Measurement and Interpretation of Sorption and Desorption Rates for Organic Compounds in Soil Media
TL;DR: A number of models have been used to describe batch experiments and have been coupled to advection-dispersion transport equations for use in flowing water systems as mentioned in this paper, including bond energetics, driving force theory, diffusion, and stochastic analysis.
Related Papers (5)
A distributed reactivity model for sorption by soils and sediments. 8. Sorbent organic domains : Discovery of a humic acid glass transition and an argument for a polymer-based model
A distributed reactivity model for sorption by soils and sediments. 3. Effects of diagenetic processes on sorption energetics.
Thomas M. Young,Walter J. Weber +1 more