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| 偶氮苯侧链结构对聚丙烯酸酯三阶非线性光学性能影响 | |
| 引用本文： | 方敏,徐洪耀,光善仪,唐本忠,蒋民华. 偶氮苯侧链结构对聚丙烯酸酯三阶非线性光学性能影响[J]. 高分子学报, 2006, 0(3): 443-449 |
| 作者姓名： | 方敏 徐洪耀 光善仪 唐本忠 蒋民华 |
| 作者单位： | 1. 安徽大学化学化工学院,安徽省绿色高分子材料重点实验室,合肥,230039 2. 安徽大学化学化工学院,安徽省绿色高分子材料重点实验室,合肥,230039;香港科技大学化学系,香港,九龙 3. 山东大学晶体材料重点实验室,济南,250100 |
| 基金项目： | 国家自然科学基金(基金号90206014,50472038)，安徽省优秀青年基金(基金号04044060)，安徽省高层次优秀人才研究奖励基金(基金号2004z027)，新世纪优秀人才基金(基金号NCET040588)资助项目 |
| 摘 要： | 设计合成了一系列含偶氮苯非线性生色团的丙烯酸酯,并采用溶液聚合法合成了功能化的聚丙烯酸酯,利用FTIR、NMR、UV等对化合物的结构进行了表征,证实得到了指定结构的化合物.利用Z扫描技术对合成的聚丙烯酸酯的非线性光学性能进行了研究,通过对聚合物的非线性光学吸收拟合,计算得到非线性吸收系数β和三阶非线性系数χ(3),并探讨了取代基生色团分子结构与高分子三阶非线性光学性能的关系,结果显示增大侧链生色团π电子离域长度或强DπA(推拉基团)结构均可有效提高聚合物的三阶非线性光学性能. |
| 关 键 词： | 非线性光学 聚丙烯酸酯 偶氮苯 Z-扫描 |
| 收稿时间： | 2004-12-28 |
| 修稿时间： | 2005-03-09 |
EFFECT OF SIDE-CHAIN STRUCTURE ON THE THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF ACRYLATE POLYMERS |
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| FANG Min,XU Hongyao,GUANG Shanyi,TANG Ben Zhong,JIANG Minhua. EFFECT OF SIDE-CHAIN STRUCTURE ON THE THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF ACRYLATE POLYMERS[J]. Acta Polymerica Sinica, 2006, 0(3): 443-449 | |
| Authors: | FANG Min XU Hongyao GUANG Shanyi TANG Ben Zhong JIANG Minhua |
| Affiliation: | 1.Faculty of Chemistry and Chemical Engineering,The Key Laboratory of Environment-Friendly Polymer Materials of Anhui Province,Anhui University,Hefei 2300039;2.Department of Chemistry,Hong Kong University of Science and Technology,Kowlon,Hong Kong;3.Institute of Crystal Materials,Shandong University,Jinan 250001 |
| Abstract: | A serials of acrylate monomers containing long conjugated azobenzene groups were prepared and polymerized in N,N-dimethylformamide (DMA) using 2,2′-azobis(isobutyronitrile) (AIBN) as initiator at 70℃. The monomers and polymers were characterized by FTIR, 1H-NMR and UV. The molecular weights of polyacrylates were determined by gel permeation chromatography (GPC). The third-order nonlinear optical properties of these polymers were determined by the Z-scan technique with 8 ns pulses at 532 nm, and the relationship between nonlinear optical properties and the molecular structures of substituted chromophores was investigated. The results revealed that all these polymers possessed well nonlinear absorption,and enlarging π-electron conjugated length and strengthening D-π-A push-pull capacity of side-chain chromophores of polymers will effectively enhance the third-order nonlinear optical properties of polymers. |
| Keywords: | Nonlinear optical property Polyacrylate Azobenzene Z-scan technique |
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