摘要
Several bisazo pigments were synthesized by coupling 2, 7-diaminoflurenone with avariety of 2-hydroxy-3-naphthanilides. The results of elementary analysis and iR indicatedthat the synthesis and purification were successful. The UV spectra of the pigments in DMFrevealed that the visible absorption bands of Azo-3 and Azo-4 were red-shifted obviouslywhich can be attributed to the significant conjugate effect. When the pigments in DMF wereirradiated using an infrared lamp, the properties of photochrism were observed. When theirradiation was carried out by using a high pressure mercury lamp, the absorption of thesolutions was decreased. The xerographic performence of Azo-3 in combination with two chargetransport molecules [ 4-(diethylamino ) benzaldehyde diphenyl-hydrozone (DEH ) and4(dimethylamino) benzaldehyde phenylnaphthylhydrozone (DENH )] was investigated. Wefound Azo-3 has a better photosensitivity by using DENH as charge transport molecule andpoly(methyl methacrylate) (PMMA) as charge blocking layer.
Several bisazo pigments were synthesized by coupling 2, 7-diaminoflurenone with avariety of 2-hydroxy-3-naphthanilides. The results of elementary analysis and iR indicatedthat the synthesis and purification were successful. The UV spectra of the pigments in DMFrevealed that the visible absorption bands of Azo-3 and Azo-4 were red-shifted obviouslywhich can be attributed to the significant conjugate effect. When the pigments in DMF wereirradiated using an infrared lamp, the properties of photochrism were observed. When theirradiation was carried out by using a high pressure mercury lamp, the absorption of thesolutions was decreased. The xerographic performence of Azo-3 in combination with two chargetransport molecules [ 4-(diethylamino ) benzaldehyde diphenyl-hydrozone (DEH ) and4(dimethylamino) benzaldehyde phenylnaphthylhydrozone (DENH )] was investigated. Wefound Azo-3 has a better photosensitivity by using DENH as charge transport molecule andpoly(methyl methacrylate) (PMMA) as charge blocking layer.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第9期1488-1490,共3页
Chemical Journal of Chinese Universities
基金
浙江省自然科学基金
关键词
双偶氮染料
光致增色
光电导性
偶氮染料
2, 7-Diaminofluorenone, Blsazo pigment, Photochrism, Photoconductivity
