标题：Color-Transformable Silicone Elastomers Prepared by Thiol-Ene Reaction with Potential Application in UV-LEDs
作者：Zuo, Yujing; Gou, Zhiming; Zhang, Jie; Feng, Shengyu
作者机构：[Zuo, Yujing; Gou, Zhiming; Zhang, Jie; Feng, Shengyu] Shandong Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Special Funct Aggregated Mat, Jinan 2 更多
通讯作者地址：[Feng, SY]Shandong Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Special Funct Aggregated Mat, Jinan 250100, Peoples R China;[Feng, SY]Shandong Uni 更多
来源：MACROMOLECULAR RAPID COMMUNICATIONS
关键词：color-transformable; elastomers; luminescent; multicolor-emitting; materials
摘要：A series of high-efficiency, full-color fluorescent elastomers based on polysiloxane matrix prepared by an easy thiol-ene "click" reaction is reported here. It is found for the first time that the same elastomer can emit transformable colors by conveniently altering the excitation wavelength because of the effect of energy transfer and the "fluorescence switch" of lanthanide ions. A fluent change in emission colors can also be feasible and conveniently reproducible by varying the stoichiometric ratio of lanthanide ions and rhodamine-B in solution and in polymer elastomers. The obtained elastomers are further coated onto commercially available UV-LED cells from the solution medium followed by an in situ cross-linking step.