Crossref journal-article
Wiley
Journal of Computational Chemistry (311)
Abstract

AbstractWe introduce the Cohesive Energy Density (CED) method, a multiple sampling Molecular Dynamics computer simulation procedure that may offer higher consistency in the estimation of Hildebrand and Hansen solubility parameters. The use of a multiple sampling technique, combined with a simple but consistent molecular force field and quantum mechanically determined atomic charges, allows for the precise determination of solubility parameters in a systematic way (σ = 0.4 hildebrands). The CED method yields first‐principles Hildebrand parameter predictions in good agreement with experiment [root‐mean‐square (rms) = 1.1 hildebrands]. We apply the CED method to model the Caltech electronic nose, an array of 20 polymer sensors. Sensors are built with conducting leads connected through thin‐film polymers loaded with carbon black. Odorant detection relies on a change in electric resistivity of the polymer film as function of the amount of swelling caused by the odorant compound. The amount of swelling depends upon the chemical composition of the polymer and the odorant molecule. The pattern is unique, and unambiguously identifies the compound. Experimentally determined changes in relative resistivity of seven polymer sensors upon exposure to 24 solvent vapors were modeled with the CED estimated Hansen solubility components. Predictions of polymer sensor responses result in Pearson R2 coefficients between 0.82 and 0.99. © 2004 Wiley Periodicals, Inc. J Comput Chem 25: 1814–1826, 2004

Bibliography

Belmares, M., Blanco, M., Goddard, W. A., Ross, R. B., Caldwell, G., Chou, S. ‐H., Pham, J., Olofson, P. M., & Thomas, C. (2004). Hildebrand and Hansen solubility parameters from Molecular Dynamics with applications to electronic nose polymer sensors. Journal of Computational Chemistry, 25(15), 1814–1826. Portico.

Authors 9
  1. M. Belmares (first)
  2. M. Blanco (additional)
  3. W. A. Goddard (additional)
  4. R. B. Ross (additional)
  5. G. Caldwell (additional)
  6. S.‐H. Chou (additional)
  7. J. Pham (additional)
  8. P. M. Olofson (additional)
  9. Cristina Thomas (additional)
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Dates
Type When
Created 20 years, 11 months ago (Aug. 31, 2004, 8:04 a.m.)
Deposited 1 year, 10 months ago (Sept. 28, 2023, 10:47 p.m.)
Indexed 3 weeks ago (Aug. 2, 2025, 12:36 a.m.)
Issued 20 years, 11 months ago (Aug. 31, 2004)
Published 20 years, 11 months ago (Aug. 31, 2004)
Published Online 20 years, 11 months ago (Aug. 31, 2004)
Published Print 20 years, 8 months ago (Nov. 30, 2004)
Funders 0

None

@article{Belmares_2004, title={Hildebrand and Hansen solubility parameters from Molecular Dynamics with applications to electronic nose polymer sensors}, volume={25}, ISSN={1096-987X}, url={http://dx.doi.org/10.1002/jcc.20098}, DOI={10.1002/jcc.20098}, number={15}, journal={Journal of Computational Chemistry}, publisher={Wiley}, author={Belmares, M. and Blanco, M. and Goddard, W. A. and Ross, R. B. and Caldwell, G. and Chou, S.‐H. and Pham, J. and Olofson, P. M. and Thomas, Cristina}, year={2004}, month=aug, pages={1814–1826} }