水溶性高分子化合物に関する研究(第1報)

高分子アゾ染料について(1)

抄録

Styrene was copolymerized with methacrylic acid, itaconic acid, or malefic anhydride to obtain a copolymer containing about 50 mole per cent of styrene group. Each of the copolymers was nitrated and subsequently reduced to polyamino compound. It was shown by analysis that 1 to 1.5 amino groups had been intro-duced into each phenyl group along the molecular chain. The polyamino copolymers were diazotized and polymeric azo dyes were synthesized by coupling with other aromatic amines or naphthols. Cotton, acetate rayon, nylon and polyester fibers were dyed using naphthol as a grounder and the diazotized copolymer as a developer. The color was generally light brown or khaki, though it varied to some extent depending on the nature of fibers used. The dyeing properties and dyeing processes were discussed based on the polymeric properties.