Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 127, Issue 3, Pages 1717-1724Publisher
WILEY
DOI: 10.1002/app.37897
Keywords
light-emitting diodes; packaging; silicone resin; high refractive index
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Funding
- Zhejiang Provincial Natural Science Foundation of China [Y4080264]
- Zhejiang Provincial Technologies R&D Program of China [2009C31081]
- transformation of S&T achievements project of Hangzhou Normal University [2010CXY9103]
- Opening Foundation of Zhejiang Provincial Top Key Discipline of Zhejiang University of Technology [20110941]
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A novel high refractive index and highly transparent silicone resin-type material for the packaging of high-power light-emitting diodes (LEDs) is introduced, which was synthesized by hydrosilylation of vinyl end-capped methylphenyl silicone resin and methylphenyl hydrosilicone oil catalyzed by Karstedt's catalyst. The vinyl end-capped methylphenyl silicone resins were prepared by hydrolysis-polycondensation method from methylphenyl diethoxysilane (MePhSi(OEt)(2)), phenyl triethoxysilane (PhSi(OEt)(3)), and vinyl dimethylethoxy silane (Me(2)ViSiOEt) in toluene/water mixture catalyzed by cation-exchange resin. The vinyl end-capped methylphenyl silicone resins were characterized by H-1-NMR and Fourier-transform infrared. The performances of the cured silicone resin-type materials for LED packaging have been examined in detail. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
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