Synthesis and characterization of an acrylate-copolymer-based antistatic agent composed of a single-ion conductive polymer electrolyte

Authors

  • Dongyang Guo,

    1. State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, China 610065
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  • Jiliang Wang,

    1. State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, China 610065
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  • Jingxin Lei

    Corresponding author
    1. State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, China 610065
    • State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, China 610065
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Abstract

Monomethoxy poly(ethylene glycol) acrylate (MPEGA) was synthesized through the esterification reaction of acrylic acid and methoxy poly(ethylene glycol)s (MPEGs) of different molecular weights. Then, MPEGA was copolymerized with methyl methacrylate, butyl acrylate, and β-carboxyethyl acrylate neutralized with potassium hydroxide via conventional solution polymerization. In this way, a single-ion conductive polymer-electrolyte-based antistatic agent (PEAA), in which potassium (K) ions were used as charge carriers, was obtained. The molecular structure, coordination effects between ether oxygen (EO) groups and K cations, ionic conductivity, and crystallization ability of the copolymer were characterized with Fourier transform infrared, conductivity measurements, polarizing optical microscopy, and differential scanning calorimetry, respectively. The crystallinity of the synthesized PEAA apparently decreased with the molecular weight of MPEG and the EO/K molar ratio decreasing, and this led to a corresponding enhancement of the conductivity. The dependence of the conductivity of the copolymer on temperature could be divided into different linear parts, and each was in good agreement with the Arrhenius equation. Moreover, the dependence of the conductivity on the relative humidity (RH) revealed that the PEAA could maintain high ionic conductivity (∼10−6 S/cm) even at the low RH of 10%. This implies the potential widespread application of PEAAs for the preparation of antistatic composites and especially poly(vinyl chloride)- and poly(methyl methacrylate)-related composites because of their considerable miscibility. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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