UV-curable ladder-like diphenylsiloxane-bridged methacryl-phenyl-siloxane for high power LED encapsulation

doi:10.1039/c8ra00063h

CORC > 化学研究所 > 中国科学院化学研究所

	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
刊名	RSC ADVANCES
	2018
卷号	8 期号:17 页码:9049-9056
ISSN号	2046-2069
DOI	10.1039/c8ra00063h
英文摘要	A 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.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000431972600003
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/43135]
专题	中国科学院化学研究所
通讯作者	Cao, X. Y.; Ma, Y. M.
作者单位	1.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
推荐引用方式 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.