Synthesis and Electron Transporting Properties of Polyfluorene-graft-Polystyrene

被引：2
作者：
Cheng, Jin [1 ]
Kanehashi, Shinji [1 ,2 ]
Ogino, Kenji [1 ,2 ]
机构：
[1] Tokyo Univ Agr & Technol, Grad Sch Bioapplicat & Syst Engn, 2-24-16 Nakacho, Koganei, Tokyo 1848588, Japan
[2] Tokyo Univ Agr & Technol, Inst Global Innovat Res, 2-24-16 Nakacho, Koganei, Tokyo 1848588, Japan
来源：
JOURNAL OF FIBER SCIENCE AND TECHNOLOGY | 2022年 / 78卷 / 04期
关键词：
LIGHT-EMITTING-DIODES; SIDE-CHAINS; BETA-PHASE; POLYMER; POLY(3-HEXYLTHIOPHENE); COPOLYMERS; EMISSION; MOBILITY; ORDER; BLOCK;
D O I：
10.2115/fiberst.2022-0009
中图分类号：
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号：
0805 ; 080502 ; 0821 ;
摘要：
Polyfluorene (PF) and its derivatives have been widely recognized as PLED materials with several advantages. To fulfill higher electron transporting properties, we incorporated polystyrene (PSt) at the active position of fluorene as side chain. Polyfluorene-graft-polystyrene (PF-g-PSt) was prepared with a different ratio of PSt side chain in the PF main chain. Compared with various properties of the homopolymer, it is found that that the graft polymers had similar thermal and electrochemical performance, less the beta-phase formation and photoluminescent stability, but smoother surface and higher crystallinity. Judging from the electron mobilities determined from the space charge limited current profiles, it was found that the graft polymer with one PSt side chain in main chain in average exhibited the higher electron mobility than the homopolymer and other graft polymers attached with more PSt side chains.
引用
收藏
页码：81 / 88
页数：8
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