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Synthesis of carbazole-substituted poly(dimethylsiloxane) and its improved refractive index

机译：咔唑取代的聚二甲基硅氧烷的合成及其改进的折射率

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A series of substituted 9-vinylcarbazole polysiloxane was synthesized followed by room temperature vulcanization to afford a crosslink network via trimethoxysilane crosslinker. Structural confirmation was made using FTIR, one and two-dimensional H-1- and Si-29-NMR spectroscopy. Quantitative estimation of the amount of substituted carbazole was made based on NMR data. These were related to the refractive index whose values were in the range of 1.4370-1.4625 at increasing carbazole content. These values are higher than uncrosslink series, attributable to the tightness of the systems. They displayed an improved thermo-optic coefficient compared to linear unsubstituted polydimethylsiloxane (PDMS). The synergistic effect of substituted carbazole unit with the crosslink network of PDMS presents a viable choice of encapsulant for opto-electronic devices. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41654.
机译：合成了一系列取代的9-乙烯基咔唑聚硅氧烷，然后进行室温硫化，以通过三甲氧基硅烷交联剂提供交联网络。使用FTIR，一维和二维H-1-和Si-29-NMR光谱进行结构确认。基于NMR数据对取代的咔唑的量进行定量估计。这些与在咔唑含量增加时其折射率在1.4370-1.4625范围内的折射率有关。这些值高于非交联系列，这归因于系统的紧密性。与线性未取代的聚二甲基硅氧烷（PDMS）相比，它们显示出更高的热光系数。取代咔唑单元与PDMS交联网络的协同作用为光电器件提供了一种可行的密封剂选择。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41654。

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