ELECTROCHEMICAL POLYMERIZATION OF FLUORENE IN MIXED PROTON ELECTROLYTE OF ACETIC ACID CONTAINING BORON TRIFLUORIDE DIETHYL ETHERATE

WANG  Jiong; MIAO  Huaming; LU  Baoyang; XU  Jingkun; LI  Yuzhen; ZHANG  Honglin

doi:10.3724/SP.J.1105.2011.10079

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ELECTROCHEMICAL POLYMERIZATION OF FLUORENE IN MIXED PROTON ELECTROLYTE OF ACETIC ACID CONTAINING BORON TRIFLUORIDE DIETHYL ETHERATE

Research Article | 更新时间：2021-03-19

- ELECTROCHEMICAL POLYMERIZATION OF FLUORENE IN MIXED PROTON ELECTROLYTE OF ACETIC ACID CONTAINING BORON TRIFLUORIDE DIETHYL ETHERATE
- Acta Polymerica Sinica Issue 3, Pages: 327-334(2011)
- 作者机构：
- 作者简介：
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- DOI：10.3724/SP.J.1105.2011.10079
  CLC：
- Published：20 March 2011，
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WANG Jiong, MIAO Huaming, LU Baoyang, XU Jingkun, LI Yuzhen, ZHANG Honglin. ELECTROCHEMICAL POLYMERIZATION OF FLUORENE IN MIXED PROTON ELECTROLYTE OF ACETIC ACID CONTAINING BORON TRIFLUORIDE DIETHYL ETHERATE. [J]. Acta Polymerica Sinica (3):327-334(2011)
DOI：

WANG Jiong, MIAO Huaming, LU Baoyang, XU Jingkun, LI Yuzhen, ZHANG Honglin. ELECTROCHEMICAL POLYMERIZATION OF FLUORENE IN MIXED PROTON ELECTROLYTE OF ACETIC ACID CONTAINING BORON TRIFLUORIDE DIETHYL ETHERATE. [J]. Acta Polymerica Sinica (3):327-334(2011) DOI： 10.3724/SP.J.1105.2011.10079.

摘要

在三氟化硼V（乙醚）∶V（乙酸） = 4∶5的混合电解质体系中直接氧化芴

获得芴聚合物膜

其电导率为0.5 S cm-1

高于在纯三氟化硼乙醚中制得的聚芴的电导率0.25 S cm-1. 在三氟化硼乙醚∶乙酸=4∶5的混合电解质体系中获得的聚芴膜具有良好的电化学性质和化学稳定性. FTIR

1H-NMR和量化计算表明反应发生在2

7位. 紫外和荧光实验表明电解质中少量聚乙二醇1000的存在有利于聚合链的增长. 电镜分析

含聚乙二醇1000情况下制备的聚芴膜外观形貌上为更大的片状物

堆叠更为有序. 同时荧光光谱表明聚合物是一种良好的蓝色荧光材料

热重分析表明该混合体系中形成聚芴的热稳定性要优于纯三氟化硼乙醚中获得的聚合物.

Abstract

Polyfluorene flims were synthesized electrochemically by direct anodic oxidation of fluorene in the mixed electrolyte of acetic acid and borontrifluoride diethyl etherate (BFEE) (5∶4 by volume).The oxidation potential of fluorine in the mixed electrolyte was measured to be only 0.48 V versus Pt

which was much lower than that determined in acetonitrile containing 0.1 mol L-1 tetrabutylammonium tetrafluoroborate (TBATFB).The conductivity of polyfluorene from this medium was 0.5 S cm-1

which was higher than that determined in pure BFEE (0.25 S cm-1).The polyfluorene films obtained from acetic acid and BFEE (5∶4 by volume) showed good electrochemical behavior and stability in concentrated sulfuric acid.FTIR

1H\|NMR spectral results and theoretical studies demonstrated that the electropolymerization of fluorene mainly occurred at the 2

7-positions.Compared with that obtained from the mixed electrolyte without PEG1000

the polymer obtained from acetic acid and BFEE (5∶4 by volume) with PEG1000 showed a red shift in the fluorescence spectra

a better thermal stability and a more ordered stack of the platelet in appearance

but the thermal stability of the polymer obtained from acetic acid and BFEE (5∶4 by volume) was better than that for the one made in pure BFEE.At the same time

the fluorescence spectra results indicated that the soluble polyfluorene electrosynthesized from acetic acid and BFEE (5∶4 by volume) was a good blue light emitter which may find application in optoelectronics.

关键词

乙酸三氟化硼乙醚芴电化学聚合聚乙二醇1000

Keywords

Acetic acidBorontrifluoride diethyl etheratePolyfluoreneElectrochemical polymerizationPEG1000

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School of Chemistry and Environment, South China Normal University

School of Chemistry and Chemical Engineering, Sun Yat-sen University

School of Physics and Nuclear Energy Engineering, Beihang University

School of Logistics, Beijing Wuzi University

University of Chinese Academy of Sciences

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