Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 25, Issue 18, Pages 2754-2762Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201500187
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Funding
- National Natural Science Foundation of China [21274080, 21204043]
- Special Fund for Shandong Independent Innovation and Achievements transformation [2014ZZCX01101]
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The increasing pursuit of biocontained elastic materials led the investigation of the potential use of the monoterpene limonene in film synthesis via thiol-ene reaction. Poly[(mercaptopropyl) methylsiloxane] (PMMS) is first synthesized. By controlling the molar ratio of PMMS and functional monomers, such as polyethylene glycol allyl methyl ether or rhodamine-B, PMMS is partially functionalized while leaving spare mercapto groups that could be further used as cross-linking sites. On the basis of the functionalized PMMS, novel transparent silicone luminescent films with hydrophilic tunable properties are prepared by natural-sunlight-triggered thiol-ene click chemistry by using D-limonene as a cross-linker. Their structures and properties are thoroughly characterized. Transparent luminescent films are coated on commercially available UV-light emitting diode (LED) cell from solution medium followed by an in situ cross-linking step; a colorful LED cell is obtained through this facile and efficient method. The UV-LED coated by films show very intense photoluminescence under normal visible light or the light is on, and has very high coloric purity.
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