Segmental dynamics of PEO/LiClO_4 complex crystals and their influence on the Li~+-ion transportation in crystal lattices: A ~(13)C solid-state NMR approach

Gao Y.; Hu B.; Yao Y.; Chen Q.

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Segmental dynamics of PEO/LiClO_4 complex crystals and their influence on the Li~+-ion transportation in crystal lattices: A ~(13)C solid-state NMR approach

机译：PEO / LiClO_4复合晶体的分段动力学及其对晶格中Li〜+离子输运的影响：〜（13）C固态NMR方法

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The structure and chain dynamics of polyethylene oxide (PEO)/LiClO _4 complex crystals were studied by employing state-of-the-art solid-state ~(13)C NMR techniques. Remarkable helical jump motions of the PEO segments in the complex crystals at ambient temperatures were clearly demonstrated. The jump motions are believed to induce the transportation of the coordinated Li~+ ions along the crystallographic c axis, providing a novel mechanism of ionic conductivity of the complex crystals. In addition, this work also shows that solid-state high-resolution ~(13)C NMR spectroscopy can be a powerful and general tool for elucidating phase structures, dynamics, and subsequently the conduction mechanism of crystalline polymer electrolytes.

机译：通过采用最新的固态〜（13）C NMR技术研究了聚环氧乙烷（PEO）/ LiClO _4复合晶体的结构和链动力学。清楚地证明了室温下复合晶体中PEO片段的明显螺旋跳跃运动。认为跳跃运动引起配位的Li +离子沿晶体c轴的迁移，从而提供了复合晶体的离子电导率的新机制。此外，这项工作还表明，固态高分辨率〜（13）C NMR光谱可以成为阐明晶体聚合物电解质的相结构，动力学以及随后的导电机理的强大而通用的工具。

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《Chemistry: A European journal》 |2011年第32期|共6页
作者
Gao Y.; Hu B.; Yao Y.; Chen Q.;
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正文语种 eng
中图分类应用化学;
关键词
helical jump; ion transportation; molecular dynamics; NMR spectroscopy; polymer electrolytes;

机译：螺旋跃迁离子输运分子动力学核磁共振谱高分子电解质;

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1. Segmental dynamics of PEO/LiClO_4 complex crystals and their influence on the Li~+-ion transportation in crystal lattices: A ~(13)C solid-state NMR approach [J] . Gao Y., Hu B., Yao Y., Chemistry: A European journal . 2011,第32期

机译：PEO / LiClO_4复合晶体的分段动力学及其对晶格中Li〜+离子输运的影响：〜（13）C固态NMR方法
2. Temperature-variable FTIR and solid-state ~(13)C NMR investigations on crystalline structure and molecular dynamics of polymorphic poly(l -lactide) and poly(l -lactide)/poly(d -lactide) stereocomplex [J] . Pan P., Yang J., Shan G., Macromolecules . 2012,第1期

机译：温度可变的FTIR和固态〜（13）C NMR研究多晶型聚（l-丙交酯）和聚（l-丙交酯）/聚（d-丙交酯）立体配合物的晶体结构和分子动力学
3. Phase Structure and helical jump motion of poly(ethylene oxide)/LiCF 3_SO_3 crystalline complex: A high-resolution solid-state (13)~C NMR approach [J] . Wei L., Liu Q., Gao Y., Macromolecules . 2013,第11期

机译：聚环氧乙烷/ LiCF 3_SO_3晶体复合物的相结构和螺旋跳跃运动：高分辨率固态（13）〜C NMR方法
4. Molecular Dynamics and Structure of the Crystalline Region of Isotactic-Polyolefins Characterized by Solid-State NMR [C] . Toshikazu Miyoshi Symposium on lNMR spectroscopy of polymers: Innovative strategies for complex macromolecules . 2011

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5. Stoichiometry and Crystal Structure of Poly (Lactic Acid) (PLA) Stereocomplex (SC) in Cold-Crystallization and Solution-Grown Crystals as Studied by Solid-State NMR and 13C Isotope Labeling [D] . Zhou, Wenxuan. 2018

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Segmental dynamics of PEO/LiClO_4 complex crystals and their influence on the Li~+-ion transportation in crystal lattices: A ~(13)C solid-state NMR approach

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