Synthesis of derivatives of Naphtol AS containing polar groups and modification used for C.I. Pigment Red 57期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Synthesis of derivatives of Naphtol AS containing polar groups and modification used for C.I. Pigment Red 57

Authors:	Fei Xuening Zhang Tianyong and Zhou Chunlong

Affiliation:	^a Department of Basic Science, Tianjin Institute of Urban Construction, Tianjin, 300381, People's Republic of China ^b Department of Appl. Chem., Tianjin University, Tianjin, 300072, People's Republic of China

Abstract:	The synthesis of derivatives of Naphtol AS containing polar groups (–COOH, –SO₃H) and factors affecting the reaction have been studied. Four derivatives of Naphtol AS containing –COOH or –SO₃H groups in the 3- or 4- position of the phenyl ring were synthesized. Derivatives of Naphtol AS as the second coupling component were used in mixed coupling and the effect of its added amount on the colour strength, hue, flowability and dispersing extent (in water) of pigments was studied.

Keywords:	C I Pigment Red 57 Naphtol AS derivative Modifier Mixed coupling
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