title: Color-Transformable Silicone Elastomers Prepared by Thiol-Ene Reaction with Potential Application in UV-LEDs.
abstract: 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.
authors: Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China.
authors: Yujing
authors: Y
authors: Zuo
authors: Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China.
authors: Zhiming
authors: Z
authors: Gou
authors: Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China.
authors: Jie
authors: J
authors: Zhang
authors: Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China.
authors: Shengyu
authors: S
authors: Feng
mesh_terms: D057930:Click Chemistry; D005456:Fluorescent Dyes / Q000737:chemistry; D028581:Lanthanoid Series Elements / Q000737:chemistry; D012235:Rhodamines / Q000737:chemistry; D012826:Silicone Elastomers / Q000737:chemistry*; D012833:Siloxanes / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013438:Sulfhydryl Compounds / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D005456:Fluorescent Dyes; D028581:Lanthanoid Series Elements; D012235:Rhodamines; D012826:Silicone Elastomers; D012833:Siloxanes; D013438:Sulfhydryl Compounds; C029773:rhodamine B
keywords: color-transformable; elastomers; luminescent; multicolor-emitting materials