| 螺芴/2,8-S,S-二氧-二苯并噻吩共聚物的合成与性能 |
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| 引用本文： | 杨君维,王淑萌,丁军桥,王利祥. 螺芴/2,8-S,S-二氧-二苯并噻吩共聚物的合成与性能[J]. 应用化学, 2014, 31(10): 1156-1163. DOI: 10.3724/SP.J.1095.2014.40175 |
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| 作者姓名： | 杨君维 王淑萌 丁军桥 王利祥 |
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| 作者单位： | (1.中国科学院长春应用化学研究所，高分子物理与化学国家重点实验室 长春 130022；2.中国科学院大学 北京 100049) |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家自然科学基金资助项目(21174144 |
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| 摘 要： | 将缺电子单元-S,S-二氧-二苯并噻吩(SO)以2,8位引入到聚螺芴(PSFs)的主链，通过Suzuki聚合得到一系列具有不同SO含量的共聚物PSF-28SO-3、PSF-28SO-5、PSF-28SO-7和PSF-28SO-10。 不同于3,7位连接，该系列2,8-位连接的共聚物既有来自于高分子主链的本征态(LE:local excited)发光，又有来自于从四烷氧基芴侧链到主链中SO单元的电荷转移(CT:charge transfer)发光，最终表现为近白光发射。 其中，PSF-28SO-10具有最优器件性能，发光效率为0.58 cd/A，色坐标为（0.25,0.36）。
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| 关 键 词： | 高分子发光二极管 电荷转移 聚螺芴 S S-二氧-二苯并噻吩 |
| 收稿时间： | 2014-05-12 |
| 修稿时间： | 2014-06-18 |
Synthesis and Properties of Poly(spirobifluorene-co-2,8-dibenzothiophene-S,S-dioxide) s |
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| YANG Junwei,WANG Shumeng,DING Junqiao,WANG Lixiang. Synthesis and Properties of Poly(spirobifluorene-co-2,8-dibenzothiophene-S,S-dioxide) s[J]. Chinese Journal of Applied Chemistry, 2014, 31(10): 1156-1163. DOI: 10.3724/SP.J.1095.2014.40175 |
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| Authors: | YANG Junwei WANG Shumeng DING Junqiao WANG Lixiang |
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| Affiliation: | (1.State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of ;Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;2.University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | An electron-deficient moiety, namely dibenzothiophene-S,S-dioxide(SO), has been incorporated into the main chain of poly(spirobifluorene)s(PSFs) via its 2 and 8 positions to form a series of copolymers with different SO content(PSF-28SO-3, PSF-28SO-5, PSF-28SO-7 and PSF-28SO-10). Unlike the 3,7-linked analogue that mainly reveals a charge transfer(CT) emission from the electron-rich tetraoctyloxyfluorene side chain to the electron-deficient SO unit in the main chain, the resultant polymers PSF-28SO-3~PSF-28SO-10 show emissions not only from the local excited(LE) states but also from the CT ones due to the unique 2,8-linkage. Consequently, near-white emission is achieved for these copolymers. Among them, PSF-28SO-10 has the best device performance, giving a luminous efficiency of 0.58 cd/A and Commission Internationale de L′Eclairage(CIE) coordinates of (0.25,0.36). |
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| Keywords: | polymer light-emitting diodes charge transfer poly (spirobifluorene) s dibenzothiophene-S,S-dioxide |
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