Skip to main content

Official Journal of the Japan Wood Research Society

Journal of Wood Science Cover Image

Chemical modification of wood by anhydrides without solvents or catalysts

Abstract

Acetylated, propionylated, butyrylated, isobutyrylated, and hexanoylated woods were prepared at several temperatures. The reaction rate, dimensional stability, and changes in the ratios of specific gravity and dimensions in the tangential and radial directions were estimated. The reaction rate of propionylation was slow at temperatures under 90°C but increased with the temperature. The butyrylated, isobutyrylated, and hexanoylated woods showed little or no weight percent gain (WPG) and little or no antiswelling efficiency (ASE) below 110°C even for 24h, but they achieved significant WPG and ASE values at 140°C with a longer reaction time. The acetylated, propionylated, and butyrylated woods showed almost the same values for dimensional stabilization efficiency based on WPG (DSE). The specific gravity and dimensions ratios for acetylated, propionylated, and butyrylated woods compared to those of untreated wood increased with an increase in WPG.

References

  1. 1.

    Goldstein IS, Jeroski EB, Lund AE, Weaver JW (1961) Acetylation of wood in lumber thickness. For Prod J 11:363–370

    CAS  Google Scholar 

  2. 2.

    Dreher WA, Goldstein IS, Cramer GR (1964) Mechanical properties of acetylated wood. For Prod J 14:66–68

    Google Scholar 

  3. 3.

    Rowell RM (1982) Distribution of acetyl groups in southern pine reacted with acetic anhydride. Wood Sci 15:172–182

    CAS  Google Scholar 

  4. 4.

    Yano H, Norimoto M, Yamada T (1986) Changes in acoustical properties of Sitka spruce due to acetylaeion (in Japanese). Mokuzai Gakkaishi 32:990–995

    Google Scholar 

  5. 5.

    Rowell RM, Tillman A, Simonson R (1986) A simplified procedure for the acetylation of hardwood and softwood flakes for flakeboard production. J Wood Chem Technol 6:427–448

    CAS  Article  Google Scholar 

  6. 6.

    Ramsden MJ, Blake FSR (1997) A kinetic study of the acetylation of cellulose, hemicellulose and lignin components in wood. Wood Sci Technol 31:45–50

    CAS  Article  Google Scholar 

  7. 7.

    Rowell RM (1984) Penetration and reactivity of cell wall components. In: Rowell RM (ed) Chemistry of solid wood. American Chemical Society, Wanshington, DC, pp 183–187

    Google Scholar 

  8. 8.

    Parker SP (1992) Steric effect (chemistry). In: Parker SP (ed) McGraw-Hill encyclopedia of science & technology (volume 17). McGraw-Hill, New York, pp 428–433

    Google Scholar 

  9. 9.

    Rowell RM, Dall Eills W (1978) Determination of dimensional stabilization of wood using the water-soak method. Wood Sci Technol 10:104–111

    CAS  Google Scholar 

  10. 10.

    Rowell RM, Gutzmer DI, Sachs IB, Kinney RE (1976) Effects of alkylene oxide treatments on dimensional stability of wood. Wood Sci 9:51–54

    CAS  Google Scholar 

Download references

Author information

Affiliations

Authors

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Li, J., Furuno, T., Katoh, S. et al. Chemical modification of wood by anhydrides without solvents or catalysts. J Wood Sci 46, 215–221 (2000). https://doi.org/10.1007/BF00776452

Download citation

Key words

  • Wood
  • Acetylation
  • Propionylation
  • Butyrylation
  • Dimensional stabilization efficiency