Molecular Rheology: Proton Multiple-Quantum and Fast-Field-Cycling Nuclear Magnetic Resonance

WANG Hao; ZHAO Pei-zhi; WANG Xiao-liang; ZHANG Rong-chun

doi:10.14028/j.cnki.1003-3726.2024.24.278

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Molecular Rheology: Proton Multiple-Quantum and Fast-Field-Cycling Nuclear Magnetic Resonance

更新时间：2025-01-23

- Molecular Rheology: Proton Multiple-Quantum and Fast-Field-Cycling Nuclear Magnetic Resonance
- Polymer Bulletin Vol. 38, Issue 2, Pages: 244-264(2025)
- 作者机构：
  
  1.华南理工大学前沿软物质学院华南软物质科学与技术高等研究院，广州 510640
  2.南京大学化学化工学院高分子科学与工程系，南京 210093
  3.华南理工大学广东省功能与智能杂化材料与器件重点实验室，广州 510640
  4.华南理工大学广东省高等学校能源与信息高分子材料基础研究卓越中心，广州 510640
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2024.24.278
  CLC：
- Received：19 September 2024，
  
  Accepted：07 November 2024，
  
  Published Online：31 December 2024，
  
  Published：20 February 2025
- 稿件说明：
移动端阅览
王皓, 赵培植, 王晓亮, 张荣纯. 分子流变学: 质子多量子和快速场循环核磁共振. 高分子通报, 2025, 38(2), 244–264.

Wang, H.; Zhao, P. Z.; Wang, X. L.; Zhang, R. C. Molecular rheology: proton multiple-quantum and fast-field-cycling nuclear magnetic resonance. Polym. Bull. (in Chinese), 2025, 38(2), 244–264
王皓, 赵培植, 王晓亮, 张荣纯. 分子流变学: 质子多量子和快速场循环核磁共振. 高分子通报, 2025, 38(2), 244–264. DOI： 10.14028/j.cnki.1003-3726.2024.24.278.

Wang, H.; Zhao, P. Z.; Wang, X. L.; Zhang, R. C. Molecular rheology: proton multiple-quantum and fast-field-cycling nuclear magnetic resonance. Polym. Bull. (in Chinese), 2025, 38(2), 244–264 DOI： 10.14028/j.cnki.1003-3726.2024.24.278.

摘要

流变学通过表征宏观黏弹性对外界应力或应变的响应而成为研究高分子动力学的有力工具，而近年来发展的多量子和快速场循环核磁共振技术则可以在分子层面直接揭示高分子动力学演化过程，因此流变学和核磁共振技术相结合可以在不同时空尺度上更全面地揭示材料的内在动力学特性，建立材料宏观性能和微观分子动力学之间的联系，同时为发展和完善高分子动力学理论提供强有力的技术支撑。基于此，本文主要简单介绍高分子动力学基本理论，并详细介绍了利用多量子和快速场循环核磁共振技术获取高分子多尺度动力学的基本原理及方法，并将其与宏观流变学的实验结果相关联。最后，我们还简单介绍了多量子和快速场循环核磁共振技术在超分子橡胶，凝胶，纳米复合材料等多个复杂体系中的应用。

Abstract

Rheology is a powerful tool for probing molecular dynamics of polymers

via

characterizing viscoelastic responses to external stress or strain

while the multiple-quantum (MQ) and fast-field-cycling (FFC) nuclear magnetic resonance (NMR) techniques can directly quantitatively reveal the hierarchical dynamics of polymers at the molecular level. Herein

a combination of rheology and NMR can provide deep insights into the comprehensive dynamic characteristics of polymers

and thus to establish the relationship between macroscopic performance and microscopic molecular dynamics

providing experimental evidences for t

he further development of polymer dynamics theories. In this article

we firstly give a brief introduction to the polymer dynamics theories

and then we detail the fundamental principles and experimental methods of MQ and FFC NMR for quantitative extraction of molecular dynamics information

which are correlated well with rheology results. Lastly

we show some examples of using a combination of NMR and rheology to study different complex systems including supramolecular rubbers

hydrogels

nanocomposites

and so on.

关键词

Keywords

references

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