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2023•Macromolecular Reaction EngineeringOpen access

Influence of Benzoyl Peroxide and Divinylbenzene Concentrations on the Properties of Poly(glycidyl methacrylate‐co‐divinylbenzene) Magnetic Microspheres

Washington J. F. Formiga, Manoel Ribeiro da Silva, Henrique Almeida Cunha, Jacira Aparecida Castanharo, Ivana Lourenço de Mello de Ferreira, Marcos Antônio da Silva Costa

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Abstract

Abstract In this work, the synthesis of magnetic microspheres of poly(glycidyl methacrylate‐co‐divinylbenzene) via suspension polymerization is reported. The concentrations of divinylbenzeneand benzoyl peroxide in the microspheres synthesis are studied. The microspheres, characterized by thermal analysis , scanning electron microscopy, vibrating sample magnetometry , and light scattering detection , show good morphological control and thermal stability. This material presents a narrow size range and an appreciable fraction of superparamagnetic particles. The increase in divinylbenzene concentration can cause a decrease in the mean diameter of the microspheres. On the other hand, the increase in benzoyl peroxide concentration causes an increase in the mean diameter of the microspheres.

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Abstract In this work, the synthesis of magnetic microspheres of poly(glycidyl methacrylate‐co‐divinylbenzene) via suspension polymerization is reported. The concentrations of divinylbenzeneand benzoyl peroxide in the microspheres synthesis are studied. The microspheres, characterized by thermal analysis , scanning electron microscopy, vibrating sample magnetometry , and light scattering detection , show good morphological control and thermal stability. This material presents a narrow size range and an appreciable fraction of superparamagnetic particles. The increase in divinylbenzene concentration can cause a decrease in the mean diameter of the microspheres. On the other hand, the increase in benzoyl peroxide concentration causes an increase in the mean diameter of the microspheres.

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Available abstract

Abstract In this work, the synthesis of magnetic microspheres of poly(glycidyl methacrylate‐co‐divinylbenzene) via suspension polymerization is reported. The concentrations of divinylbenzeneand benzoyl peroxide in the microspheres synthesis are studied. The microspheres, characterized by thermal analysis , scanning electron microscopy, vibrating sample magnetometry , and light scattering detection , show good morphological control and thermal stability. This material presents a narrow size range and an appreciable fraction of superparamagnetic particles. The increase in divinylbenzene concentration can cause a decrease in the mean diameter of the microspheres. On the other hand, the increase in benzoyl peroxide concentration causes an increase in the mean diameter of the microspheres.

Key concepts: Divinylbenzene, Benzoyl peroxide, Glycidyl methacrylate, Suspension polymerization, Superparamagnetism, Materials science, Thermal stability, Polymer chemistry

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Influence of Benzoyl Peroxide and Divinylbenzene Concentrations on the Properties of Poly(glycidyl methacrylate‐co‐divinylbenzene) Magnetic Microspheres — Research Paper | ScholarLens