Effect of Suzuki Polymerization Conditions on the Molecular Weight of Polyfluorene

Shu-yue Song; Xiao-dong Wang; An-dong Zhang; Yue-heng Liu; Cheng-lin Gu; Ya-hui Liu; Zhi-shan Bo

doi:10.11777/j.issn1000-3304.2024.24228

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Effect of Suzuki Polymerization Conditions on the Molecular Weight of Polyfluorene

Research Article | 更新时间：2025-01-24

- Effect of Suzuki Polymerization Conditions on the Molecular Weight of Polyfluorene
- Acta Polymerica Sinica Vol. 56, Issue 2, Pages: 299-305(2025)
- 作者机构：
  
  1.青岛大学纺织服装学院功能染料与应用技术研究院青岛 266071
  2.北京师范大学化学学院能量转换与存储材料北京市重点实验室北京 100875
- 作者简介：
  
  Ya-hui Liu, E-mail: liuyh@qdu.edu.cn
  Zhi-shan Bo, E-mail: zsbo@bnu.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2024.24228
  CLC：
- CSTR：32057.14.GFZXB.2024.7312
- Published：20 February 2025，
  
  Published Online：18 December 2024，
  
  Received：28 August 2024，
  
  Accepted：2024-09-30
- 稿件说明：
移动端阅览
SHU-YUE SONG, XIAO-DONG WANG, AN-DONG ZHANG, YUE-HENG LIU, CHENG-LIN GU, YA-HUI LIU, ZHI-SHAN BO. Effect of Suzuki Polymerization Conditions on the Molecular Weight of Polyfluorene. [J]. Acta polymerica sinica, 2025, 56(2): 299-305.
DOI：

SHU-YUE SONG, XIAO-DONG WANG, AN-DONG ZHANG, YUE-HENG LIU, CHENG-LIN GU, YA-HUI LIU, ZHI-SHAN BO. Effect of Suzuki Polymerization Conditions on the Molecular Weight of Polyfluorene. [J]. Acta polymerica sinica, 2025, 56(2): 299-305. DOI： 10.11777/j.issn1000-3304.2024.24228. CSTR： 32057.14.GFZXB.2024.7312.

摘要

聚芴作为一类典型的有机共轭半导体材料，在有机光电器件制备中

得到广泛应用，其分子量对光电性质具有显著影响. 本研究聚焦于聚芴材料的制备过程，采用Suzuki反应制备聚芴，通过调控溶剂(四氢呋喃/水、甲苯/水、邻二甲苯/水、二氯甲烷/水)，碱的种类(碳酸钾、碳酸氢钾、氢氧化钾、磷酸钾)，催化剂(Pd(PPh

)

、Pd

(dba)

/P(

-Tol)

、Pd(OAc)

/P(

-tol)

、PdCl

(dppf)、PdCl

(PPh

)

)，以及化学计量比（1:1，1:0.99，1:1.01）等反应条件，深入研究了这些因素对聚芴类材料分子量的影响. 研究结果表明，增强有机溶剂与水的混溶性，选用中等强度的无机碱，采用二价钯催化体系，并严格控制反应物的投料比为1:1，有助于合成高分子量的聚芴.

Abstract

Polyfluorene is a typical class of organic conjugated semiconductor materials

which is widely used in the preparation of organic optoelectronic devices

and its molecular weight has a significant effect on the optoelectronic properties. In this study

we focused on the preparation of polyfluorene materials and investigated the effect on the molecular weight of polyfluorene materials by controlling the reaction conditions

such as solvent (tetrahydrofuran/H

toluene/H

-xylene/H

dichloromethane/H

base (K

KHCO

KOH

)

catalyst (Pd(PPh

)

(dba)

/P(

-Tol)

Pd(OAc)

/P(

-tol)

PdCl

(dppf)

PdCl

(PPh

)

) and stoichiometric ratio (1:1

1:0.99

1:1.01). Our results show that the obtained polyfluorene tend to display high molecular weight by increasing the miscibility of organic solvents with water

selecting medium strength inorganic bases

Pd(Ⅱ) catalytic system

and strictly controlling the reaction feed ratio (1:1).

关键词

Suzuki聚合分子量聚芴反应条件共轭聚合物

Keywords

Suzuki polymerizationMolecular weightPolyfluoreneReaction conditionsConjugated polymer

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