Magnetic Resonance
Magnetic Resonance
MR
Articles | Volume 6, issue 2
Articles | Volume 6, issue 2
https://doi.org/10.5194/mr-6-317-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/mr-6-317-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 6, issue 2
Research article
 | 
15 Dec 2025
Research article |  | 15 Dec 2025

Static-gradient NMR imaging for depth-resolved molecular diffusion in amorphous regions in semicrystalline poly(tetrafluoroethylene) film

Natsuki Kawabata, Naoki Asakawa, and Teruo Kanki

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Short summary
We developed a new, low-cost nuclear magnetic resonance imaging method to visualize how molecules move inside a solid polymer film. By examining different depths of a polytetrafluoroethylene film, we discovered that molecular motion is strongly limited near the supporting surface but more active at the air side. This finding helps explain how local environments affect the flexibility of polymer materials.
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