| Synthesis of a main-chain photo-responsive azo polymer through azo-coupling reaction | |
| Che Pengchao ; He Yaning ; Wang Xiaogong | |
| 2010-05-07 ; 2010-05-07 | |
| 关键词 | azo-coupling reaction azo polymer dichroism surface-relief-gratings NONLINEAR-OPTICAL POLYMERS SURFACE-RELIEF GRATINGS FILMS CHROMOPHORES Polymer Science |
| 中文摘要 | A novel polymer PAPE, containing electron donator-acceptor azobenzene chromophores in the main chain, has been synthesized by azo-coupling reaction. The azo polymer was characterized by H-1-NMR, UV-Vis spectrometry and thermal analysis. The lambda(max) of the polymer film and DMF solution was determined to be 445 nm and 446 nm, respectively. The number average molecular weight determined by GPC was M-n = 5600 with a polydispersion index 2.2. The glass transition temperature (T-g) of the polymer was 132 degrees C observed from DSC thermogram. The results showed the azo polymer can be successfully synthesized through azo-coupling reaction. The synthetic scheme demonstrated in this work is a feasible way to prepare main-chain azo polymers under an extremely mild condition. Dichroism was optically induced in the PAPE films under the irradiation of Ar+ laser beam at 488 nm, and the orientational order parameter obtained was 0.03. Surface-relief-gratings were observed on PAPE films after irradiated by an interference pattern of Ar+ laser beam for 1000 s. The surface modulation depth and the grating spacing were measured by AMF to be 89 nm and 900 nm. |
| 语种 | 中文 ; 中文 |
| 出版者 | SCIENCE CHINA PRESS ; BEIJING ; 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/17807]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Che Pengchao,He Yaning,Wang Xiaogong. Synthesis of a main-chain photo-responsive azo polymer through azo-coupling reaction[J],2010, 2010. |
| APA | Che Pengchao,He Yaning,&Wang Xiaogong.(2010).Synthesis of a main-chain photo-responsive azo polymer through azo-coupling reaction.. |
| MLA | Che Pengchao,et al."Synthesis of a main-chain photo-responsive azo polymer through azo-coupling reaction".(2010). |
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