Structural orientation and electric polarization of polymers in stationary magnetic fields

Magnetic fields (MFs) of 100 to 500 kA/m were found to order magnetoanisotropic structural units in nonpolar polymer melts, e.g., polyethylene (PE). A temperature range and a threshold intensity of MF were observed when PE melt was partially ordered, i.e., when it was in a quasi-liquid-crystalline state. It is believed that thermomagnetic treatment of polymers in MFs can result in electrical polarization and formation of magnetoelectrets. A relationship is believed to exist between the polarization processes and the orientation of magnetoanisotropic macromolecules and aggregates in MFs.<
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