Wood Cell-Wall Crystallinity and Tritiated Water Autoradiography<sup>1</sup>
Abstract
Light microscope autoradiography gave further insight into the influence of polar solvents on wood crystal structure. Wood with and without moisture cure polyurethane coating was exposed to tritiated water vapor, and then subjected to various treatments designed to remove tritium from the wood substance. The strong retention of tritium by the wood, and its partial removal only after cyclic drying and wetting, indicated that this tritium was located on hydroxyl groups within cellulose crystalline regions. It also indicated that transformation of paracrystalline regions into crystalline regions and the reverse does occur during wetting and drying cycles.References
Bailey, M. E. 1960. Polyurethane coatings. Official Digest, 421: 197-202.nFriedlander, G., and J. W. Kennedy. 1955. Nuclear and radio chemistry. John Wiley and Sons, New York.nKing, T., and C. Quellet. 1936. Sorption of deuterium oxide by cellulose. Can. J. Res., 14B: 444.nKaplin, M., and G. Wooster. 1964. Color stable urethane coatings based on a cycloaliphatic di-isocyanate. J. Paint Technol. 41 (537): 551-557.nLang, M. J., and S. G. Mason. 1960. Tritium exchange between cellulose and water: accessibility measurements and effects of cyclic drying. Can. J. Chem., 38: 373-387.nLowe, A. 1963. The influence of isocyanate and ancillary raw material compositions on polyurethane film performance. J. Oil Colour Chem. Assoc. October: 820-843.nMiller, O. L., G. E. Stone, and D. M. Prescott. 1964. Autoradiography of soluble materials. J. Cell Biol., 23: 654-661.nSepal, O., and S. G. Mason. 1961. Hydrogen exchange between cellulose and water. Can. J. Chem., 39: 1944-1955.nShatenshtein, A. I. 1962. Isotopic exchange and the replacement of hydrogen in organic compounds. Consultants Bureau Enterprises, Inc.nStamm, A. J. 1964. Wood and cellulose science. The Ronald Press, New York.nYarwood, J. 1948. High vacuum technique. John Wiley and Sons, London.n
Downloads
Published
Issue
Section
License
The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:
1. All proprietary rights other than copyright, such as patent rights.
2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.
3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.