Dyes and Pigments

The effect of dye structure on the dyeing and optical properties of dichroic dyes for PVA polarizing film

JB Chang, JH Hwang, JS Park, JP Kim

Index: Chang, Jae Bok; Hwang, Jong Hak; Park, Jong S.; Kim, Jae Pil Dyes and Pigments, 2011 , vol. 88, # 3 p. 366 - 371

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Citation Number: 22

Abstract

The dyeing behaviour and optical properties of four novel dyes in PVA polarizing films were determined in terms of the linearity, hydrogen bonding ability, intermolecular interaction and transition moment. The linearity and H-bonding ability of the dyes were the dominant factors in terms of both the substantivity and orientation in PVA films, which, in turn, determined the dichroic ratios of the polarizing films. Dye adsorption and optical anisotropy of the dyes ...