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Electron Energy Loss Spectroscopy (EELS) for Quantification of Cell-Wall Penetration of a Melamine Resin
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A.O. Rapp
Published/Copyright:
June 1, 2005
Summary
A literature survey was performed to find progress in techniques for monitoring penetration of synthetic resins in wood cell walls. Electron energy loss spectroscopy (EELS) in combination with transmission electron microscopy (TEM) was successfully applied for the high resolution examination of the distribution of a partly methylated hydroxymethyl melamine resin in Norway spruce (Picea abies Karst.) earlywood cell walls. The nitrogen of the resin was found as clearly detectable signals in all layers of the lignified cell wall, thus allowing the quantification of resin which had penetrated into the different layers. Possible principles of decay protection of wood which has been upgraded with low concentrated aqueous solutions of modified hydroxymethyl melamine resins with medium to low hydroxymethyl/melamine ratios are discussed.
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Published Online: 2005-06-01
Published in Print: 1999-03-01
Copyright (c)1999 by Walter de Gruyter GmbH & Co. KG
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Articles in the same Issue
- Electron Energy Loss Spectroscopy (EELS) for Quantification of Cell-Wall Penetration of a Melamine Resin
- Extraction Conditions Affect Protein Recovery and Enzyme Activity in Wood Wafers Exposed to Stain Fungi and Bioprotectants
- Identification of the Dry Rot Fungus, Serpula lacrymans, and the Wild Merulius, S. himantioides, by Amplified Ribosomal DNA Restriction Analysis (ARDRA)
- Development of Model Systems for Investigations of the Dry Rot Fungus Serpula lacrymans (Schumach. ex Fr.) Gray: Use for Analysis of the Environmental Sensitivity of the Organism
- Extracellular Polysaccharides from the Suspension-Culture of <I>Populus Alba</I> L.
- Chemical Constituents and Mechanisms of Discoloration of Taiwania (Taiwania cryptomerioides Hayata) Heartwood. The Structure Reconfirmation and Conversion Mechanism of Taiwanin A
- Ellagitannins in Woods of Spanish, French and American Oaks
- Water Repellent Efficiency of Organic Solvent Extractives from Aleppo Pine Leaves and Bark Applied to Wood
- Deposition of Lignin in Differentiating Xylem Cell Walls of Normal and Compression Wood of Buxus microphylla var. insularis Nakai
- Depolymerization of Straw Lignin by Manganese Peroxidase from Nematoloma frowardii is Accompanied by Release of Carbon Dioxide
- Structural Characterization of Cork Lignin by Thioacidolysis and Permanganate Oxidation
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