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含硝基噁二唑聚炔的合成及三阶非线性光学性能
引用本文:刘天宝,汪新,彭艳芬,李敏,严永新,吴国志,苏新艳,徐洪耀. 含硝基噁二唑聚炔的合成及三阶非线性光学性能[J]. 高分子材料科学与工程, 2012, 0(1): 45-47,51
作者姓名:刘天宝  汪新  彭艳芬  李敏  严永新  吴国志  苏新艳  徐洪耀
作者单位:池州学院化学材料与工程实验中心;东华大学纤维材料改性国家重点实验室
基金项目:安徽省高等学校省级优秀青年人才基金项目(2010SQRL133);安徽省自然科学基金资助项目(090414190);安徽省教育厅自然科学基金项目(KJ2010B135,KJ2009A122,KJ2011A208);国家自然科学基金资助项目(51003013);池州学院重点学科建设基金(2011XK04)
摘    要:设计合成了一种含硝基噁二唑功能基的聚炔材料。通过红外光谱(IR)和核磁共振(1H-NMR)对该聚炔化合物进行了结构表征。利用紫外光谱(UV-vis)和热重分析(TGA)对其性能进行了评价。TGA显示其热稳定性相对于单体有很大提高,UV-vis表明它在500 nm以上长波区吸收很弱。该聚炔化合物的非线性光学性能借助Z-scan技术进行研究,其χ(3)达3.25×10-11(esu)。与含烷基的同类聚炔比较,拉电子基团硝基有效地提高了含噁二唑聚炔的三阶非线性光学性能。

关 键 词:聚炔  噁二唑  非线性光学  热稳定性

Synthesis and the Third-Order Nonlinear Optical Property of Oxadiazole-Containing Polyacetylene
Tianbao Liu,Xin Wang,Yanfen Peng,Min Li,Yongxin Yan,Guozhi Wu,Xinyan Su,Hongyao Xu. Synthesis and the Third-Order Nonlinear Optical Property of Oxadiazole-Containing Polyacetylene[J]. Polymer Materials Science & Engineering, 2012, 0(1): 45-47,51
Authors:Tianbao Liu  Xin Wang  Yanfen Peng  Min Li  Yongxin Yan  Guozhi Wu  Xinyan Su  Hongyao Xu
Affiliation:1.Center of Chemical Engineering and Materials Science,Chizhou University,Chizhou 247000,China;2.State Key Laboratory for Modification of ChemicalFibers and Polymer Materials,Donghua University,Shanghai 201620,China)
Abstract:The oxadiazole-containing polyacetylene was synthesized in satisfactory yield with [Rh(nbd)Cl]2 catalyst.The structure and properties of the monomer and the polymer were characterized and evaluated with Fourier transform infrared spectrum(FT-IR),1H nuclear magnetic resonance spectrum(1H-NMR),UV-vis and thermogravimetric analysis(TGA).The nonlinear optical property is performed with 4 ns pulse width at 532 nm wavelength.The polymer is thermally stable and the decomposed temperature is as high as ~370 ℃.The weak electronic absorption of the polymer is observed when the wavelength is over 500 nm.The result of Z-scan measurement reveals that the oxadiazole-containing polyacetylene with nitro group shows larger third order nonlinear optical susceptibility(up to 3.25×10-11esu).
Keywords:polyacetylene  oxadiazole  nonlinear optics  thermal performance
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