Preparation of organic reversible thermochromatic material and study on its microencapsulation was written by Cui, Xiaoliang;Zhang, Baoyan;Meng, Fanbao;Meng, Hao;Xia, Yan. And the article was included in Hecheng Shuzhi Ji Suliao in 2002.Product Details of 1552-42-7 This article mentions the following:
A kind of organic reversible thermochromatic material was prepared with the crystal violet lactone as leuco dye, cetanol as solvent and benzyl P-hydroxybenzoate as ingrain agent. The optimum ratio of the leuco dye, ingrain agent and solvent was determined as 1:3:30. In the material, the solvent decided the temperature to change color, the ingrain agent decided the color shade and the leuco dye itself decided the properties such as the color and stability of the reversible thermochromatic material. The results indicate that when the reversible thermochromatic material is microcapsuled with urea-formaldehyde resin, its thermal stability is enhanced, its solvent resistance improves, and its loss during usage reduces. In the experiment, the researchers used many compounds, for example, Crystal violet lactone (cas: 1552-42-7Product Details of 1552-42-7).
Crystal violet lactone (cas: 1552-42-7) belongs to benzofurans derivatives. Benzofurans are compounds with a planar structure having 10 pi electrons that include the lone pair on oxygen atom, which makes it more susceptible to electrophilic attack. Benzofurans have also made significant and distinctive contributions to biology. They exhibit several biological activities that range from antiviral, antimicrobial, antitumor, anti-inflammatory.Product Details of 1552-42-7
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem