Design, synthesis and photophysical properties of a hyperbranched conjugated polymer
文献类型：期刊论文
| 作者 | Lin, T; He, QG; Bai, FL; Dai, LM |
| 刊名 | THIN SOLID FILMS
 |
| 出版日期 | 2000-03-01 |
| 卷号 | 363期号:1-2页码:122-125 |
| 关键词 | Hyperbranched Conjugated Polymer Electroluminecence Poly(3 5-bisvinylic)Benzene |
| ISSN号 | 0040-6090 |
| 英文摘要 | The conjugated dendrimer, poly(3,5-bisvinylic)benzene HS1, was synthesized by two routes. Elementary analysis, FTIR, NMR and GPC spectra were used to characterize the dendrimer. HS1 has good solubility in common organic solvents although it does not contain long alkyl side chain. The photophysical properties in solution and net solid film are inspected. Absorption maxima were determined at 290 and 310 nm with a molar absorption coefficient in the order of 10(4), and the emission maxima were at 359 and 369 nm. The excitation spectrum is similar to that of the absorption. A minor image relationship existed between the absorption and emission spectra characteristic of the rigid structure of the polymer. The Stokes shift (70 nm) is large, which means the large difference in the energy level between the ground and singlet excited state. The fluorescence quantum yield is about 36%. The net film of HS1 has a broad emission at 446 nm. The marked difference between the solution and net solid film in photophysical properties suggested the large change in intermolecular interaction from solution to the solid film state. Molecular mechanical calculations are used to aid the design and simulation of the structure of HS1. In generation 1-2, the optimized geometry shows a relatively good planarity. While the torsion appeared at the interference of the branches in generation 3 and the optimized geometry feels a zeolite structure. The calculation result is used to explain the experimental observation. The good photophysical properties and processing ability could make HS1 an ideal candidate in electroluminecence device as a blue emitter. (C) 2000 Elsevier Science S.A. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000085664000031 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/76455]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Lin, T |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Organ Solid Lab, Ctr Mol Sci, Beijing 100080, Peoples R China 2.CSIRO, Clayton S, Vic 3169, Australia |
| 推荐引用方式 GB/T 7714 | Lin, T,He, QG,Bai, FL,et al. Design, synthesis and photophysical properties of a hyperbranched conjugated polymer[J]. THIN SOLID FILMS,2000,363(1-2):122-125. |
| APA | Lin, T,He, QG,Bai, FL,&Dai, LM.(2000).Design, synthesis and photophysical properties of a hyperbranched conjugated polymer.THIN SOLID FILMS,363(1-2),122-125. |
| MLA | Lin, T,et al."Design, synthesis and photophysical properties of a hyperbranched conjugated polymer".THIN SOLID FILMS 363.1-2(2000):122-125. |
入库方式： OAI收割
来源：化学研究所
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