ICCAS OpenIR
UV-curable ladder-like diphenylsiloxane-bridged methacryl-phenyl-siloxane for high power LED encapsulation
Shang, X. X.1; Duan, S.1,2; Zhang, M.2; Cao, X. Y.1; Zheng, K.1; Zhang, J. N.1; Ma, Y. M.1; Zhang, R. B.1
2018
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume8Issue:17Pages:9049-9056
AbstractA UV curable ladder-like diphenylsiloxane-bridged methacryl-phenyl-siloxane (L-MPS) was synthesized from phenyltrichlorosilane, diphenylsilanediol and methacryloxypropyldimethylmethoxysilane via dehydrochlorination precoupling, supramolecular architecture-directed hydrolysis-condensation and end-capping reactions. The L-MPS has a condensation degree of similar to 100%, and can be complete crosslinked by UV curing. XRD, TEM and molecular simulation suggest that the ladder-like molecules are close packed with a periodic distance of ca. 1.2 nm. The L-MPS shows transmittance of 98% and a refractive index of ca. 1.61 at 450 nm. The cured L-MPS with a T-d5% value of 465.5 degrees C showed excellent anti-yellowing and anti-sulfidation properties. The cured L-MPS film and the encapsulated LED samples were compared with those of Dow Corning OE-6630 and OE-7662. It is believed that the dense nano-ladder unit also contributes to the thermal, gas barrier and even optical properties. L-MPS shows promising potential as a high power LED encapsulant and optical coating for use in harsh environments. This work provides an approach to integrate this novel ladder structure with advanced properties.
DOI10.1039/c8ra00063h
Indexed BySCI
Language英语
WOS IDWOS:000431972600003
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/43136
Collection中国科学院化学研究所
Corresponding AuthorCao, X. Y.; Ma, Y. M.
Affiliation1.Chinese Acad Sci, Inst Chem, Key Lab Green Printing, Beijing 100190, Peoples R China
2.Shaanxi Univ Sci & Technol, Minist Educ, Key Lab Light Ind & Chem Auxiliary Chem & Technol, Xian 710021, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Shang, X. X.,Duan, S.,Zhang, M.,et al. UV-curable ladder-like diphenylsiloxane-bridged methacryl-phenyl-siloxane for high power LED encapsulation[J]. RSC ADVANCES,2018,8(17):9049-9056.
APA Shang, X. X..,Duan, S..,Zhang, M..,Cao, X. Y..,Zheng, K..,...&Zhang, R. B..(2018).UV-curable ladder-like diphenylsiloxane-bridged methacryl-phenyl-siloxane for high power LED encapsulation.RSC ADVANCES,8(17),9049-9056.
MLA Shang, X. X.,et al."UV-curable ladder-like diphenylsiloxane-bridged methacryl-phenyl-siloxane for high power LED encapsulation".RSC ADVANCES 8.17(2018):9049-9056.
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