红外成像技术在高分子材料表征中的应用
Applications of Fourier transform infrared(FT-IR)imaging in the characterization of polymers
窦彤彤 1张普敦2
作者信息
- 1. 中国石油 石油化工研究院,北京 102206
- 2. 北京化工大学 化学学院 分析测试中心,北京 100029
- 折叠
摘要
红外成像技术是基于官能团特征进行成像的一种先进的化学成像方法,集红外光谱和显微分析于一体,能够直接反映样品微区内(从微米到毫米)真实的化学组成信息和空间分布信息,从分子水平上可视化地识别样品精细结构,空间分辨率高,是多组分体系样品显微分析强有力的工具.该技术自发展之初就在高分子材料分析和表征领域受到广泛关注.本文阐述了红外成像技术的基本原理,详细介绍了红外成像系统的仪器构造与工作模式,以及常用图像采集、图像预处理和图像分析的方法,总结了近年来红外成像技术在高分子材料表征领域中的一些典型应用,包括结晶和取向研究、共混物相容性研究、聚合反应及聚合物溶解、降解的可视化动力学研究、聚合物基组织工程材料的矿化研究、药物释放及微塑料分析的研究等.此外,还对红外成像在生命科学与临床诊断方面的研究进展作了简介.最后对红外成像技术的发展趋势进行展望.希望本文能够起到抛砖引玉的作用,帮助读者深刻理解红外成像这门先进的技术,进一步拓展其在聚合物材料领域中的应用.
Abstract
Fourier transform infrared(FT-IR)imaging is an advanced chemical imaging method based on func-tional group characteristics.It integrates FT-IR and microscopic analysis into one system,which can directly visu-alize the real chemical compositions and their spatial distributions in target micro-regions(from μm to mm),and i-dentify the fine structure of sample at the molecular level with high spatial resolution.It is a powerful tool for micro-analysis of multi-component samples.This technique has attracted extensive attention for the analysis and character-ization of polymer.In this review,the mechanism of FT-IR imaging is described,and the detailed instrumental structure,work models,image collection,pretreatment and analysis methods are presented.We also summarize some typical recent applications of FT-IR imaging in the field of polymer characterization including crystallization and orientation research,miscibility of polymer blends,visualization of polymerization reactions,dissolution and degradation dynamics,mineralization of polymer-based tissue engineering materials,drug release and microplastic analysis.In addition,the extension of FT-IR imaging to life science and clinical diagnosis is also introduced.Fi-nally,future advances in FT-IR imaging are predicted.It is hoped that this paper can play a role in helping read-ers to understand advanced FT-IR imaging technology and further expand its application in polymer research.
关键词
聚合物/红外成像/结构表征/图像分析Key words
polymer/FT-IR mapping/imaging/structure characterization/image analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据