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首页> 外文期刊>Optical Materials >Synthesis and properties of nonlinear optical chromophore containing alkoxy-substituted phenylene as conjugation bridge
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Synthesis and properties of nonlinear optical chromophore containing alkoxy-substituted phenylene as conjugation bridge

机译：以烷氧基取代的亚苯基为共轭桥的非线性光学发色团的合成与性能

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摘要

We designed and synthesized a push-pull type chromophore (St-TCF) containing phenylene ring as a conjugation bridge. Bulky alkyl chain was substituted into the phenylene bridge to minimize intermolecular interaction of the neighbor molecules and to enhance solubility of the chromophore in solvents and polymer host. The chemical structure and purity were verified by ~1H NMR, ~1H-~1H COSY, ~(13)C NMR, DEPT and Mass spectroscopy. The NMR spectra showed that we obtained the chromophore in a trans conformation. In spite of the bulky alkyl chains, St-TCF exhibited fairly high melting point of 167℃. The chromophore was thermally stable up to 200℃ in the nitrogen atmosphere. The relatively high melting point and decomposition on-set may be attributable to the rigid phenylene ring. The chromophore was blended with an optically transparent polymer host and then the macroscopic electro-optic activity was evaluated. In a preliminary result, the polymer films containing St-TCF as a concentration of 50 wt% exhibited as large as 20-24 pm/V electro-optic coefficient at 1.55 μ.
机译：我们设计并合成了包含亚苯基环作为共轭桥的推挽型生色团（St-TCF）。庞大的烷基链被取代到亚苯基桥中，以最小化相邻分子的分子间相互作用，并增强发色团在溶剂和聚合物主体中的溶解度。化学结构和纯度通过〜1H NMR，〜1H-〜1H COSY，〜（13）C NMR，DEPT和质谱验证。 NMR光谱表明我们获得了反式构色团。尽管烷基链很大，St-TCF仍具有167℃的较高熔点。发色团在氮气氛中高达200℃时具有热稳定性。较高的熔点和分解开始可归因于刚性亚苯基环。将生色团与光学透明的聚合物主体混合，然后评估宏观电光活性。初步结果是，浓度为50 wt％的含有St-TCF的聚合物薄膜在1.55μ处表现出高达20-24 pm / V的电光系数。

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