The relation between colour and structural changes in thermochromic systems comprising crystal violet lactone, bisphenol A, and tetradecanol
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39901313" target="_blank" >RIV/00216275:25310/17:39901313 - isvavai.cz</a>
Result on the web
<a href="http://10.1016/j.dyepig.2016.08.050" target="_blank" >http://10.1016/j.dyepig.2016.08.050</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.dyepig.2016.08.050" target="_blank" >10.1016/j.dyepig.2016.08.050</a>
Alternative languages
Result language
angličtina
Original language name
The relation between colour and structural changes in thermochromic systems comprising crystal violet lactone, bisphenol A, and tetradecanol
Original language description
The aim of the paper was to find a direct connection between dynamic colour changes, phase changes and chemical interactions in model three-component leuco dye based thermochromic systems. The model systems, containing crystal violet lactone as a colour former, bisphenol A as a developer and 1-tetradecanol as a co-solvent, were analysed by DSC and FTIR spectroscopy and the results were related to the characteristics of the dynamic colour change. The ternary thermochromic systems were also compared with binary mixtures of the co-solvent with the developer and colour former, respectively. The temperatures characterizing the dynamic colour change at decolouration limits were directly related to the solid–liquid transition on heating and liquid–solid transition on cooling, regardless the concentration of bisphenol A. In ternary thermochromic systems, an indistinctive phase transition at the temperatures below the solid–solid (crystal–rotator) transition was observed. The straight connection between the phase transitions and temperatures characterizing the dynamic colour change at colouration limits was not proved. The colour contrast of thermochromic systems was found to be directly related to the ratio of integrated intensity of lactone ring opened (solid) and lactone ring closed (liquid) carbonyl vibration characterized by infrared spectroscopy.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/LD14098" target="_blank" >LD14098: Printed Electronics and Smart Packaging</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Dyes and Pigments
ISSN
0143-7208
e-ISSN
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Volume of the periodical
136
Issue of the periodical within the volume
January 2017
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
382-389
UT code for WoS article
000387837200045
EID of the result in the Scopus database
2-s2.0-84985916912