Proton spin-diffusion in PVDF: a 1H–19F CP/MAS NMR study

文献情報

出版日

DOI 10.1039/A902556A

インパクトファクター 3.676

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要旨

Proton spin-diffusion experiments were carried out in order to investigate the domain structure of semicrystalline poly(vinylidene fluoride) by means of different approaches. Besides static proton NMR experiments of the Golden–Shen type the spin-diffusion phenomenon has been studied by means of 1H–19F NMR dual-channel cross-polarization in conjunction with magic-angle spinning. The fluorine NMR detection of proton spin-diffusion gives a much higher discrimination of the effect due to the large chemical shift differences between the signals of the crystalline and amorphous regions. Different mobility filters were applied in order to create a magnetization profile which allowed the measurement of the transfer from the crystalline regions to the mobile parts and viceversa. The data for the magnetization transfer of the spin-diffusion process support the two-component model of the polymer.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.