Interaction of dyes with substances of high molecular weight

CONTENTS
I. Introduction 550
II. Macromolecular substances producing a change in the colour of a dye ("metachromasy") 550
III. Spectral properties of some organic dyes in the dissolved, adsorbed, and solid states 551
IV. Spectral data on the interaction of dyes with macromolecular substances having oppositely charged ions 555
V. Nature of absorbing centres formed in the interaction of dyes with macromolecular substances having oppositely charged ions 560
VI. Conditions for complex formation between macromolecular substances and dyes having oppositely charged ions 561
VII. Physicochemical properties of complexes of macromolecular substances and dyes having oppositely charged ions 563
VIII. Other cases of interaction between macromolecular substances and organic molecules 564