Summary
In previous papers, a theory was developed relating Young's modulus of hydrogenbond dominated solids to the density of this bond and to its parameters, and also to the moisture content of the solid. In this paper, the theory is applied to experimental results reported by Cousins on periodate lignin. The theory fits the observations and, furthermore, predicts that this particular lignin has 6.84 potential H-bonding sites per repeating unit of an assumed molecular weight of 1,000. No data for periodate lignin exist, but a Freudenberg constitutional scheme for lignin postulates a little over 7 potential sites for H-bonding per repeating unit of 1,000 molecular weight.
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References
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Nissan, A.H. The elastic modulus of lignin as related to moisture content. Wood Sci. Technol. 11, 147–151 (1977). https://doi.org/10.1007/BF00350992
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DOI: https://doi.org/10.1007/BF00350992