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›› 2011, Vol. 45 ›› Issue (3): 15-20.

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Synthesis and Characterization of Guaiacol Aminated Polyol

NIE Ming-cai, KONG Zhen-wu, Huo Shu-ping, WU Guo-min, CHEN Jian   

  1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.on Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2011-03-04 Revised:1900-01-01 Online:2011-05-30 Published:2011-05-30

Abstract: The Mannich reaction was applied to prepare guaiacol aminated polyol(GAP) from guaiacol, diethanolamine and paraformaldehyde. The effects of main reaction factors, i.e., ingredients drop-charging order, ratio of raw materials, reaction temperature and reaction time on the Mannich reaction were investigated. The results showed that the conversion rate of diethanolamine was the highest up to 90.71% by dropping 1,3-oxazolidine into guaiacol and reacting at 80-90℃ for 3-4 h in the molar ratio n(guaiacol):n(formaldehyde):n(diethanolamine) as 1:1:1. The 1,3-oxazolidine was obtained from the reaction of formaldehyde with diethanolamine at 60℃ for 2 h. The chemical structure of guaiacol aminated polyol was characterized by HPLC, LC-MS and FT-IR.

Key words: lignin model compound, guaiacol, Mannich reaction, aminated polyol

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