The Morphological and Capacitance Characteristics of A Novel Brush‐like Polymer Containing Polyaniline Segment. Issue 13 (2nd April 2020)

• Record Type: Journal Article
• Authors: Wang, Lin; Muslim, Arzugul; Lan, Haidie; Mamat, Milangul
• Is Part Of: ChemistrySelect. Volume 5:Issue 13(2020)
• Page Start: 3939
• Page End: 3945
• Publication Date: 2020-04-02
• Subjects: Brush-like polymer -- Capacitance -- PANI -- Vesicle; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.202000718
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: The brush‐like polymer composed of poly(acrylic acid)‐block‐grafted polyaniline (PAA42 ‐ b ‐PANI30 ‐ g ‐PANI m, marked as PAA42 ‐PANI x ) with longer conjugate chain and good capacitance characteristics was synthesized through the combination of Reversible Addition‐Fragmentation Chain Transfer (RAFT) polymerization and free radical polymerization. The structure of the obtained product was characterized with 1 H‐NMR and FT‐IR. Additionally, the morphology and particle size distribution of PAA42 ‐PANI x ultrasonically dispersed in ethanol was characterized with transmission electron microscopy. Through cyclic voltammetry (CV), chronopotentiometry and electrochemical impedance spectroscopy (EIS), the electrochemical properties of the product were analyzed. The results showed that PAA42 ‐ b ‐PANI x was a vesicle‐like particle with smaller size, uniform size and uniform morphology distribution, it has the mean particle size of only 38 nm. The final product had good peseudocapacitance, its specific capacitance reached to 1051.51 F⋅g −1 at the current density of 3 A⋅g −1 . Abstract : The novel brush‐like polymer containing polyaniline segment with good electrochemical activity was successfully synthesized. The mean particle size of its vesicular aggregates was 38 nm. When the current density was 3 A⋅g −1, the discharge specific capacity of the sample could reach to 1051.51 F⋅g −1 .