Potassium acetate-catalyzed acetylation of wood at low temperatures II: vapor phase acetylation at room temperature

@article{Obataya2008PotassiumAA,
  title={Potassium acetate-catalyzed acetylation of wood at low temperatures II: vapor phase acetylation at room temperature},
  author={Eiichi Obataya and Kazuya Minato},
  journal={Journal of Wood Science},
  year={2008},
  volume={55},
  pages={23-26}
}
Ezomatsu wood blocks were impregnated with potassium acetate (KAc) and then exposed to acetic anhydride vapor at 25°C and 120°C. The KAc-impregnated wood was rapidly acetylated at 120°C, and only 6 min was needed to achieve 20% weight percent gain (WPG). The WPG increased with increasing catalyst loading (CL), but it turned to decrease above 20% CL probably because the diffusion of acetic anhydride vapor was hindered by excess KAc depositing in the cell lumina. Thus, careful control of CL is… CONTINUE READING
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