Synthesis of novel tert-butyl substituted fluorans and an investigation of their thermochromic behavior
作者:Wooram Oh、Satheshkumar Angupillai、Palanisamy Muthukumar、Hee-Soo So、Younga Son
DOI:10.1016/j.dyepig.2016.01.036
日期:2016.5
In the present study, six tert-butyl substituted fluorans have been synthesized, and their reversible thermochromic properties have been investigated. This work is the first direct demonstration of the role of the substituent on the lactone concerning the thermochromic reversibility of the fluoran. The electron donating substituents induced greater chromic effects than the electron withdrawing substituents