Polyfluorene-poly(ethylene oxide) diblock copolymers: synthesis and electron transport behavior

被引：1
|
作者：
Cheng, Jin [1 ,2 ,3 ]
Jiang, Ruoyu [1 ,3 ]
Shan, Yuhua [2 ]
Sun, Hong [4 ]
Kanehashi, Shinji [3 ,5 ]
Ogino, Kenji [3 ,5 ]
机构：
[1] Changzhou Vocat Inst Engn, Dept Chem Engn & Pharmaceut Engn, Changzhou 213164, Peoples R China
[2] Changzhou Univ, Jiangsu Prov Key Lab Fine Petrochem Engn, Changzhou 213164, Peoples R China
[3] Tokyo Univ Agr & Technol, Grad Sch Bioapplicat & Syst Engn, 2-24-16 Nakacho, Koganei, Tokyo 1848588, Japan
[4] Zhejiang Fenghong New Mat Co Ltd, Huzhou 313300, Peoples R China
[5] Tokyo Univ Agr & Technol, Inst Global Innovat Res, 2-24-16 Nakacho, Koganei, Tokyo 1848588, Japan
来源：
RSC ADVANCES | 2024年 / 14卷 / 32期
基金：
日本学术振兴会;
关键词：
Copolymer synthesis - Diblock-copolymer - Electron transport - End capping - Mild reaction conditions - Poly(ethylene) oxide - Polyfluorenes - Synthesised - Thermal-optical - Transport behavior;
D O I：
10.1039/d4ra03606a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Under mild reaction conditions, we synthesized diblock copolymers of poly(9,9-dioctylfluorene)-block-poly(ethylene oxide) (PFO-b-PEO) via end-capping poly(9,9-dioctylfluorene) (PFO) with poly(ethylene oxide) (PEO) on one end. We investigated the thermal, optical, electrochemical and crystalline properties as well as electron transport performance of these polymers. Our results demonstrate that PFO-b-PEO diblock copolymers with short PEO chains (Mn = 1000 and 2000 g mol-1) exhibit higher electron mobilities compared to the PFO homopolymer and longer PEO chain (Mn = 4000 g mol-1) attached copolymers. This enhanced electron mobility is attributed to the higher crystallinity induced by the shorter PEO chain end-capping. Polyfluorene-poly(ethylene oxide) diblock copolymers with shorter PEO chains (Mn = 1000 and 2000 g mol-1) enhance electron mobility due to increased crystallinity, outperforming both the homopolymer and longer-chain copolymers (Mn = 4000 g mol-1).
引用
收藏
页码：23505 / 23510
页数：6
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