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<p>Magnetic fields are rarely applied in the synthesis of polymers due to the non-magnetic nature of most monomers. However, this work presents a magnetic plasma polymerization of allylamine to obtain polyallylamine (PAl). As a result of the magnetic field, the polymeric mass obtained increased 40%, and oxidation and carbonization reduced in the polymers. No chemical differences between polyallylamines were found by IR spectroscopy; however, XPS analysis of C1s orbital distributions showed that the magnetic field reduced chemical states in polyallylamines from 11 to 8, yielding acetone-soluble fractions. Furthermore, electromagnetic absorption peaks shifted between 341&#xa0;nm and 418&#xa0;nm. Eg (optical gap) and Ea (activation energy) were also calculated using UV-Vis absorption data with the Tauc and Arrhenius equations finding that PAl possesses higher potential for electromagnetic absorption, while PAl*, with less potential, requires greater energy for the absorption. In general, magnetic fields are powerful tools to obtain less dispersed polymeric chemical structures with partial solubility among other properties.</p>

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Magnetic plasma synthesis of soluble polyallylamine

  • 期刊论文

  • 发表日期：

    2026年3月6日

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  • Fernando G. Flores-Nava,
  • Adriana Ventolero-Hernandez,
  • Ma. Guadalupe Olayo-González,
  • Esteban Chávez-Alarcón,
  • Guillermo J. Cruz-Cruz

摘要

Magnetic fields are rarely applied in the synthesis of polymers due to the non-magnetic nature of most monomers. However, this work presents a magnetic plasma polymerization of allylamine to obtain polyallylamine (PAl). As a result of the magnetic field, the polymeric mass obtained increased 40%, and oxidation and carbonization reduced in the polymers. No chemical differences between polyallylamines were found by IR spectroscopy; however, XPS analysis of C1s orbital distributions showed that the magnetic field reduced chemical states in polyallylamines from 11 to 8, yielding acetone-soluble fractions. Furthermore, electromagnetic absorption peaks shifted between 341 nm and 418 nm. Eg (optical gap) and Ea (activation energy) were also calculated using UV-Vis absorption data with the Tauc and Arrhenius equations finding that PAl possesses higher potential for electromagnetic absorption, while PAl*, with less potential, requires greater energy for the absorption. In general, magnetic fields are powerful tools to obtain less dispersed polymeric chemical structures with partial solubility among other properties.