Jump to main content
Jump to site search

Issue 7, 2003
Previous Article Next Article

Competition between dye–developer and solvent–developer interactions in a reversible thermochromic system

Author affiliations

Abstract

Multicomponent thermochromic systems contain a dye, a colour developer, and a solvent. Dye–developer interactions, including complex formation, have been examined in our previous study. In this paper, the interactions between the same developer (lauryl gallate) and a solvent (1-octadecanol) are characterised both through phase diagram determination and from Raman spectroscopy. The role of dye–developer complex formation in the thermochromic behaviour of the ternary thermochromic system (with the addition of crystal violet lactone dye) is addressed. We find two competing interactions for the developer: the dye–developer complex forms in the melt and in the quenched solid (giving a coloured mixture), but a solvent–developer complex is more favorable as the solid equilibrates. The latter gives rise to concomitant decolourisation.

Graphical abstract: Competition between dye–developer and solvent–developer interactions in a reversible thermochromic system

Back to tab navigation

Publication details

The article was received on 26 Feb 2003, accepted on 16 Apr 2003 and first published on 09 May 2003


Article type: Paper
DOI: 10.1039/B302250A
Citation: J. Mater. Chem., 2003,13, 1701-1704
  •   Request permissions

    Competition between dye–developer and solvent–developer interactions in a reversible thermochromic system

    D. C. MacLaren and M. A. White, J. Mater. Chem., 2003, 13, 1701
    DOI: 10.1039/B302250A

Search articles by author

Spotlight

Advertisements