pH induced regulation of the morphology and properties of polybenzidine submicron rods

WANG Lin; ZHANG Yan-hui; Arzugul MUSLIM; Abida ABDUNAZAR; LAN Hai-die

doi:10.3969/j.issn.1000-5641.2019.02.018

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Mar. 2019

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Article Navigation > Journal of East China Normal University (Natural Sciences) > 2019 > (2): 164-173

WANG Lin, ZHANG Yan-hui, Arzugul MUSLIM, Abida ABDUNAZAR, LAN Hai-die. pH induced regulation of the morphology and properties of polybenzidine submicron rods[J]. Journal of East China Normal University (Natural Sciences), 2019, (2): 164-173. doi: 10.3969/j.issn.1000-5641.2019.02.018

Citation:

WANG Lin, ZHANG Yan-hui, Arzugul MUSLIM, Abida ABDUNAZAR, LAN Hai-die. pH induced regulation of the morphology and properties of polybenzidine submicron rods[J]. Journal of East China Normal University (Natural Sciences), 2019, (2): 164-173. doi: 10.3969/j.issn.1000-5641.2019.02.018

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pH induced regulation of the morphology and properties of polybenzidine submicron rods

doi: 10.3969/j.issn.1000-5641.2019.02.018

WANG Lin^{1,2
,},
ZHANG Yan-hui^1,2,
Arzugul MUSLIM^{1,2
,
,},
Abida ABDUNAZAR^1,2,
LAN Hai-die^1,2

1.
School of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
2.
Engineering Research Center of Electrochemical Technology and Application, Xinjiang Normal University, Urumqi 830054, China

Received Date: 2018-03-02
Publish Date: 2019-03-25

Abstract

Abstract

Polybenzidine was prepared using micelles of the triblock copolymer PnBA₂₈-b-PS₇₅-b-P2VP₁₀₄ as a template. The effects of different pH values on the morphology and properties of polybenzidine (PBZ) were investigated by regulating the pH value of the micellar solution of the templates. The molecular weight distribution and structure of the triblock copolymer PnBA₂₈-b-PS₇₅-b-P2VP₁₀₄ were determined by size exclusion chromatography (SEC) and nuclear magnetic resonance spectroscopy (¹H-NMR). The morphology and structure of the composites were characterized using a scanning electron microscope (SEM), transmission electron microscope (TEM), and Fourier transform infrared spectroscopy (FT-IR). The electrochemical capacitance of the composites was evaluated by chronopotentiometry. The effects of the pH value on the morphology, structure and properties of PBZ were explored in this study. The PBZ particles were submicron and micron rods with uniform distribution and a smooth surface. PBZ rods obtained at pH=5 had an average diameter that ranged from several tens to 200 nm. The uniformity of particle morphologies was found to decrease with an increase in pH value; A electrochemical performance test showed that the specific capacitance of PBZ reached 339.06 F/g at pH=5.
- pH induced regulation,
- polybenzidine,
- lock copolymer template,
- morphology,
- capacitance

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References(31)

References

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