摘要
基于内酯环类热敏染料的热变色性 ,通过分子设计和结构修饰 ,将显色性功能基团连接在内酯环荧烷母体上合成新型的热敏染料 ,达到同样的效果 ,并用紫外、红外等光谱探讨热变色机理 .研究表明 ,低温时 ,内酯环呈开环的状态 ,具有共轭结构 ,显示一定的颜色 .高温时 ,因溶剂化作用分子闭环 ,共轭结构消失而消色 .
Based on thermochromic properties of lactonic ring thermochromic dyestuff, a new heat sensitive dyestuff was prepared by molecule designed and structure modified. It is a material with functional group of color developer and has the same effect. Mechanism of thermochromism was investigated by ultra violent and infrared spectrum. The result indicates that there is conversion between the lactone and unlock ring structure of fluoran. At lower temperature the composite is colored form, the ring opening of molecule ofcolorant occurred and conjugated structure formed. At high temperature the composite is colorless form because of solvent effect, the structure of molecule become lactone. The composite shows a good reversibility of themochromism.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第12期114-116,共3页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
