Imaging Science and Photochemistry ›› 2001, Vol. 19 ›› Issue (3): 193-197.DOI: 10.7517/j.issn.1674-0475.2001.03.193

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PHOTO AND THERMAL DECOMPOSITION OF DIFFERENT DIPHENYLAMINE-4-DIAZONIUM SALTS AND THEIR RESINS

SUN Feng, YANG Bo-xuan, WANG Ren-xiang, CAO Wei-xiao   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
  • Received:2000-10-12 Revised:2000-12-28 Online:2001-08-20 Published:2001-08-20

Abstract: The photo and thermal decomposition of three diphenylamine-4-diazonium salts: DS, MDS, NDS and the corresponding diazoresins DR, MDR, and NDR were investigated in water and in solid films. It was found that the photo-decomposition is no obvious difference in aqueous solution for various salts and resins, but the thermal decomposition is different remarkably. The methoxy substituted diazonium salt(MDS) and resin(MDR) possess higher thermal stability than that of DS, NDS and their resins. In the case of solid films the NDR exhibits superior thermal stability due to its high hydrophobic characteristic.

Key words: diphenylamine-4-diazonium salt, diazoresin, photo and thermal decomposition

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