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两种新型聚(3-丁酰基吡咯苯甲烯)的三阶非线性光学性能 被引量:1

THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF TWO NOVEL POLY(3-BUTYRYLPYRROLE METHINES)
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摘要 通过3-丁酰基吡咯单体分别与对硝基苯甲醛和香草醛的缩聚反应,成功合成了两种新型可溶性聚吡咯甲烯衍生物——聚[(3-丁酰基吡咯-2,5-二)对硝基苯甲烯](PBPNBE)和聚[(3-丁酰基吡咯-2,5-二)(3-羟基-4-甲氧基)苯甲烯](PBPHM BE)。采用1H-NM R、FT-IR和UV-V is-N IR光谱对目标产物的分子结构进行了详细的表征。通过测试计算得到聚合物PBPNBE和PBPHM BE的光学禁带宽度分别为1.84 eV和1.48 eV。采用后向简并四波混频技术研究了聚合物薄膜的三阶非线性光学性能。结果表明,聚合物PBPNBE和PBPHM BE具有大的三阶非线性极化率,其值分别为2.10×1-0 8esu和8.65×10-8esu。 Two novel soluble poly (pyrrole methines), poly E (3-butyrylpyrrole-2,5-diyl) p-nitrobenzylidene'] (PBPNBE) and poly E (3-butyrylpyrrole-2,5-diyl) ( 3-hydroxy-4-methoxy ) benzylidene] (PBPHMBE), were synthesized firstly by condensation of 3-butyrylpyrrole with p-nitrobenzaldehyde and vanillin, respectively. The chemical structures of monomer, PBPNBE and PBPHMBE were proved by FT-IR, ^1H-NMR and UV-Vis-NIR spectra. The optical forbidden band gaps of PBPNBE and PBPHMBE are about 1.84 eV and 1.48 eV, respectively. The thirdorder nonlinear optical properties of the polymers were studied using degenerate four-wave mixing (DFWM) at 532 nm. The third-order nonlinear susceptibilities of PBPNBE and PBPHMBE are as large as 2.10×10^-8esu and 8.65×10^-8esu, respectively.
出处 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2005年第5期159-162,共4页 Polymer Materials Science & Engineering
基金 国家自然科学基金资助项目(60277002)
关键词 聚[(3-丁酰基吡咯-2 5-二)对硝基苯甲烯] 聚[(3-丁酰基毗咯-2 5-二)(3-羟基-4-甲氧基)苯甲烯] 合成与表征 光学禁带宽度 简并四波混频 三阶非线性极化率 poly E(3-butyrylpyrrole-2, 5-diyl ) p-nitrobenzylidene] poly E( 3-butyrylpyrrole-2, 5-diyl) (3-hydroxy-4-methoxy) benzylidene-] synthesis and earaeterization optical forbidden bandgap degenerate four-wave mixing third-order nonlinear susceptibility
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