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    Author(s): Daniel J. Yelle; John Ralph; Charles R. Frihart
    Date: 2009
    Source: Proceedings, 32nd annual meeting of the Adhesion Society, Inc., February 15-18, 2009, Savannah, GA. Blacksburg, Va. : Adhesion Society, c2009: p. 212-214.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (1.19 MB)

    Description

    The objectives of this study are the following: (1) Use solution-state NMR to assign contours in HSQC spectra of the reaction products between pMDI model compounds and: (a) lignin model compounds, (b) milled-wood lignin, (c) ball-milled wood, (d) microtomed loblolly pine; (2) Determine where and to what degree urethane formation occurs with loblolly pine cell wall polymers at 0% and 5% moisture content (MC).

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Yelle, Daniel J.; Ralph, John; Frihart, Charles R. 2009. Investigating the reactivity of pMDI with wood cell walls using high-resolution solution-state NMR spectroscopy. In: Proceedings, 32nd annual meeting of the Adhesion Society, Inc., February 15-18, 2009, Savannah, GA. Blacksburg, Va. : Adhesion Society, c2009: p. 212-214.

    Keywords

    Isocyanates, adhesives, glue, plant cell walls, adhesion, hydroxyl group, chemical reactions, nuclear magnetic resonance spectroscopy, loblolly pine, microstructure, wood moisture, urethane, spectrum analysis, lignin analysis, moisture, gluing, polymers, polymerization, bond strength, wood bonding, bonding, durability, polymeric diphenylme-thane diisocyanate, pMDI, penetration, moisture content, polyurea

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