Effect of the applied magnetic field on formation of complex polyaniline films

Dimitriev, Oleg P.; Lytvyn, P. M.; Dimitriyeva, Alla P.; Getsko, O. M.

doi:10.1186/1754-0429-1-15

Cited by 5 publications

(1 citation statement)

References 35 publications

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“…Also some studies about the effect of magnetic fields on the organization and performance of the material have been reported [17,18]. The strong magnetic field applied to the material could change the behavior of arrangement, matching and migration of atoms and molecules, so give a huge and profound impact on the organization and performance of the material [17][18][19] The magnetic field can influence the orientation of a molecule through rotation of molecular fragments possessing a magnetic moment to adjust it to the applied field direction or renders the effect of translational motion of a molecule bearing a magnetic moment along the gradient of the applied field [19].…”

Section: Introductionmentioning

confidence: 99%

Effect of Weak Magnetic Field on the Structure and Physical Properties of Chitosan Membranes

Sumadiyasa

Putra

Gayatri

2021

MSF

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The purpose of this study was to evaluate the effect of weak magnetic fields on the structure and physical properties of chitosan (Ch) membranes. The membranes were prepared by a casting method using chitosan and a solvent of acetic acid. The magnetic field of 1.5 mT is applied during the membrane-forming reaction with administration times of 2, 4, 8, and 12 hours. The membranes formed were named M-2h, M-4h, M-8h, and M-12h, respectively. The chitosan membrane without magnetic fields is used as a control, namely M-0. The structure and physical properties of the membranes were examined using Fourier Transform Infra-Red (FTIR) spectrophotometer, water uptake test, dynamic mechanical analysis (DMA), and X-ray diffraction (XRD). The result showed that the membranes with magnetic fields are thicker compared to the control membrane. FTIR analysis revealed that some peaks of the membranes with magnetic fields shifted to the higher or lower wavenumber with increased or decreased absorption intensity. The membranes become stronger and more flexible; their degree of crystallinity increases as increasing the time of the magnetic fields' application, and their hydrophilicity improved. The membranes' crystal structure becomes more regular, and their degree of crystallinity increases as increasing the time of the application of the magnetic fields; and their mechanical properties such as ultimate tensile strength, tensile modulus, and elongation at break were improved. Those results explain that the structure and physical properties of chitosan membranes were significantly affected by the membrane-forming reaction's magnetic fields.

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