聚芴-聚环氧乙烷二嵌段共聚物：合成与电子传输行为

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

作者信息

Cheng Jin, Jiang Ruoyu, Shan Yuhua, Sun Hong, Kanehashi Shinji, Ogino Kenji

机构信息

Department of Chemical Engineering and Pharmaceutical Engineering, Changzhou Vocational Institute of Engineering Changzhou 213164 China

Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University Changzhou 213164 China.

出版信息

RSC Adv. 2024 Jul 26;14(32):23505-23510. doi: 10.1039/d4ra03606a. eCollection 2024 Jul 19.

DOI:10.1039/d4ra03606a

PMID:39071481

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11273366/

Abstract

Under mild reaction conditions, we synthesized diblock copolymers of poly(9,9-dioctylfluorene)--poly(ethylene oxide) (PFO--PEO) 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--PEO diblock copolymers with short PEO chains ( = 1000 and 2000 g mol) exhibit higher electron mobilities compared to the PFO homopolymer and longer PEO chain ( = 4000 g mol) attached copolymers. This enhanced electron mobility is attributed to the higher crystallinity induced by the shorter PEO chain end-capping.

摘要

在温和的反应条件下，我们合成了聚（9,9 - 二辛基芴）-聚（环氧乙烷）（PFO-PEO）二嵌段共聚物，该共聚物一端用聚（环氧乙烷）（PEO）封端聚（9,9 - 二辛基芴）（PFO）。我们研究了这些聚合物的热、光学、电化学和结晶性能以及电子传输性能。我们的结果表明，与PFO均聚物和连接有较长PEO链（= 4000 g/mol）的共聚物相比，具有短PEO链（= 1000和2000 g/mol）的PFO-PEO二嵌段共聚物表现出更高的电子迁移率。这种增强的电子迁移率归因于较短PEO链封端诱导的更高结晶度。