Chinese Journal of Applied Chemistry ›› 1997, Vol. 0 ›› Issue (6): 45-47.

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Synthesis of Diazoresin

Cao Shuguang, Zhao Chao, Cao Weixiao   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871
  • Received:1997-02-04 Revised:1997-07-14 Published:1997-12-10 Online:1997-12-10

Abstract: The diazoresin has been prepared by condensation reaction from paraformaldehyde [(CH2O)n] and diphenylamine-4-diazonium salt[-N2+X-] in concentrated sulfuric acid. The effects of stoichiometric ratio, condensation temperature and reaction time on specific viscosity of the diazoresin were studied. With the molar ratio of(CH2O)n/-N2+X-=1.2 at condensation temperature of 0~5℃, diazoresin with fair useful property was obtained.

Key words: diazoresin, synthesis, paraformaldehyde