首页> 外文期刊>Journal of Applied Polymer Science >Plasmon-enhanced, two-photon absorption in Schiff-base-modified poly(styrene-co-maleic anhydride)-gold nanocomposites
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Plasmon-enhanced, two-photon absorption in Schiff-base-modified poly(styrene-co-maleic anhydride)-gold nanocomposites

机译:Schiff-碱改性聚(苯乙烯 - 二氧化氢酐) - 纳米复合材料中的等离子体增强,双光子吸收

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摘要

Poly(styrene-co-maleic anhydride) (SMA) is a synthetic copolymer with interesting thermal and membrane properties. Schiff bases are one of the most widely used organic compounds with chelating ligands having N, S, and O as donor atoms. A Schiff-base-modified SMA was synthesized by the reaction of the copolymer with salicylaldehyde thiosemicarbazone. Gold (Au) nanoparticles (NPs), synthesized by a citrate reduction method were used to prepare the polymer-Au nanocomposites. In this research, we explored and investigated the effects on the linear and nonlinear optical properties of the Schiff-base-modified SMA copolymer with the incorporation of Au NPs. Open-aperture Z-scan measurements were recorded for the polymer, modified polymer, and polymer-Au nanocomposites at 532nm with an Nd:YAG laser with a repetition rate of 10Hz and a pulse width of 5 ns. The results indicate that the addition of the Au NPs effectively enhanced the two-photon absorption coefficients of the polymer and, thereby, provided a platform for the development of nonlinear optical devices with good optical-limiting properties. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45377.
机译:聚(苯乙烯 - 二氧化马来酸酐)(SMA)是具有有趣的热和膜特性的合成共聚物。 Schiff碱是使用具有N,S和O作为供体原子的螯合配体的最广泛使用的有机化合物之一。通过共聚物与水杨醛硫代甲虫的反应合成了Schiff-碱基改性的SMA。通过柠檬酸还原方法合成的金(Au)纳米颗粒(NPS)用于制备聚合物-α纳米复合材料。在这项研究中,我们探索并研究了Schiff-碱基改性SMA共聚物的线性和非线性光学性质与掺入Au nps的影响。在532nm处,用Nd:YAG激光为10Hz的重复率和5ns的脉冲宽度,在532nm处记录Open-孔径Z扫描测量以用于532nm的聚合物,改性聚合物和聚合物-αm纳米复合材料。结果表明,AU NP的添加有效地增强了聚合物的双光子吸收系数,从而为具有良好的光学限制性能的非线性光学器件的开发提供了平台。 (c)2017 Wiley期刊,Inc.J.Phill。聚合物。 SCI。 2017,134,45377。

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