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Abstract <p>A comparative study of the dielectric properties of the interpenetrating polymer network (IPN) of graphene (Gr) and poly(α-methyl styrene) (PAMS) was carried out using complex permittivity and permeability characterization. IPN was prepared under an inert atmosphere of nitrogen with varying molar concentrations. The synthesized polymer network was characterized using Fourier-transform infrared (FTIR) spectroscopy, field emission scanning electron microscopic (FESEM) techniques, conductivity and complex permittivity and permeability characterization. The IPN was analyzed by FTIR spectroscopy, which depicts the presence of Gr at 1156, 1237, 1597, and 3439 cm<sup>–1</sup> and the presence of PAMS at 3056, 1494, 2932, and 696&#xa0;cm<sup>–1</sup>. These results indicate a proper chemical reaction and interpenetration among Gr and PAMS has occurred. The polymeric interconnected film is seen via the FESEM technique, which reveals heterogeneous and dual phase morphology. The conductivity of the polymeric network was found to be 1.2124 × 10<sup>–6</sup> Ω<sup>–1</sup> m<sup>–1</sup>, revealing the semi-conductive behavior of the IPN. Permittivity data revealed enhanced dielectric property and better storage capacity. Moreover, permeability data shows that IPN possesses a moderate magnetism property too. By controlling factors like graphene concentration, orientation, and interfacial interactions within the polymer matrix, it’s possible to tune the dielectric properties of the composite material. This tunability allows for customizing the material for specific applications, such as energy storage devices. The morphology of an IPN consisting of Gr and PAMS would depend on various factors, including the preparation method, concentration of Gr and the interactions between the polymer and Gr.</p>

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Study of Dielectric Property of Interpenetrating Polymer Network of Graphene and Poly(α-methyl styrene)

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • Shikha Mishra,
  • Meet Kamal,
  • R. K. Dwivedi,
  • Himanshu B. Baskey,
  • Mohd. Meraj Jafri,
  • Shireen Shukla

摘要

Abstract

A comparative study of the dielectric properties of the interpenetrating polymer network (IPN) of graphene (Gr) and poly(α-methyl styrene) (PAMS) was carried out using complex permittivity and permeability characterization. IPN was prepared under an inert atmosphere of nitrogen with varying molar concentrations. The synthesized polymer network was characterized using Fourier-transform infrared (FTIR) spectroscopy, field emission scanning electron microscopic (FESEM) techniques, conductivity and complex permittivity and permeability characterization. The IPN was analyzed by FTIR spectroscopy, which depicts the presence of Gr at 1156, 1237, 1597, and 3439 cm–1 and the presence of PAMS at 3056, 1494, 2932, and 696 cm–1. These results indicate a proper chemical reaction and interpenetration among Gr and PAMS has occurred. The polymeric interconnected film is seen via the FESEM technique, which reveals heterogeneous and dual phase morphology. The conductivity of the polymeric network was found to be 1.2124 × 10–6 Ω–1 m–1, revealing the semi-conductive behavior of the IPN. Permittivity data revealed enhanced dielectric property and better storage capacity. Moreover, permeability data shows that IPN possesses a moderate magnetism property too. By controlling factors like graphene concentration, orientation, and interfacial interactions within the polymer matrix, it’s possible to tune the dielectric properties of the composite material. This tunability allows for customizing the material for specific applications, such as energy storage devices. The morphology of an IPN consisting of Gr and PAMS would depend on various factors, including the preparation method, concentration of Gr and the interactions between the polymer and Gr.