THE DYEING OF CELLULOSE WITH REACTIVE DYES CONTAINING PHOSPHONIC ACID GROUPS

被引：7

作者：

ALBERGHINA, G ^{[1
]}

AMATO, ME ^{[1
]}

FISICHELLA, S ^{[1
]}

RATTEE, ID ^{[1
]}

机构：

[1] UNIV CATANIA,DEPT CHEM,VIALE A DORIA 6,I-95125 CATANIA,ITALY

来源：

DYES AND PIGMENTS | 1986年 / 7卷 / 01期

关键词：

CHEMICAL REACTIONS - Condensation Reactions - CHROMATOGRAPHIC ANALYSIS;

D O I：

10.1016/0143-7208(86)87004-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The fixation of some Procion T phosphonated reactive dyes on cotton in the presence of dycyandiamide in different conditions of dyeing is reported, in order to clarify the role of the carbodiimide in the fixation process. Paper chromatographic studies on Procion Red T-2B show that the reaction mechanism between the phosphonic dye and cellulose in the presence of dicyandiamide is an initial condensation of the phosphonic dye with dicyandiamide to produce a phosphonic acid anhydride, followed by subsequent reaction with cellulose to give a dye covalently bonded to the cellulose. The phosphonic acid anhydride, isolated by means of column chromatography, shows the characteristic adsorption bands of the P-O-P linkage.

引用

页码：33 / 44

页数：12