NDLI: Synthesis and Characterization of High Refractive Index MT Siloxane Oligomers

Content Provider	Springer Nature Link
Author	Cai, Haitao Zhang, Liping Xiong, Ying Qu, Qiongli Tang, Hongding
Copyright Year	2014
Abstract	A high refractive index alkoxysilane $$ \left( {{\text{n}}_{\text{D}}^{ 2 5} = 1.512} \right) $$ , N-3-(trimethoxysilylpropyl)-phthalimide, was successfully synthesized by the substitution reaction of phthalimide potassium and γ-chloropropyltrimethoxysilane and characterized by GC, FT-IR, $^{1}$H-NMR and $^{13}$C-NMR. MT siloxane oligomers, which represent a broad range of hydrolytic condensation products of monofunctionalsilane (M) and trifunctionalsilane (T), were prepared by the reaction of the N-3-(trimethoxysilylpropyl)-phthalimide with hexamethyldisiloxane (MM) or divinyltetramethyldisiloxane (M$^{Vi}$M$^{Vi}$) in the presence of HCl. The prepared MT siloxane oligomers were also characterized by $^{1}$H-NMR, $^{13}$C-NMR, FT-IR and GPC. All the obtained colorless and transparent oligomers have higher refractive indexes, which can be adjusted to as high as 1.547 by simply varying the ratio of M and T units in the oligomers such as for the M$^{Vi}$T$^{R}$ siloxane oligomer.
Starting Page	780
Ending Page	785
Page Count	6
File Format	PDF
ISSN	15741443
Journal	Journal of Inorganic and Organometallic Polymers and Materials
Volume Number	24
Issue Number	4
e-ISSN	15741451
Language	English
Publisher	Springer US
Publisher Date	2014-05-30
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	High refractive index Alkoxysilane MT siloxane oligomers Imide Inorganic Chemistry Organic Chemistry Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Polymers and Plastics

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