X射线吸收精细结构技术在高分子及相关材料中的应用  

XAFS Applications on Polymers and Related Materials

作　　者：郭慧龙 王佳怡[2,3] 吴忠华[2,3] 蒋世春[1] 

机构地区：[1]天津大学材料学院,天津300072 [2]中国科学院高能物理研究所同步辐射实验室 [3]中国科学院大学,北京100049

出　　处：《高分子学报》2014年第2期179-187,共9页Acta Polymerica Sinica

基　　金：国家自然科学基金(基金号20974077,51173110,10385008)资助项目

摘　　要：高分子材料由于其优异的物理和化学性能应用范围非常广泛,而同步辐射光源的发展大大提高了X射线吸收精细结构(XAFS)技术的使用.本文介绍了XAFS包括扩展X射线吸收精细结构(EXAFS)和X射线吸收近边结构(XANES)的实验原理和实验手段,综述了同行利用XAFS技术在常见高分子、有机金属高分子、钯掺杂高分子、离聚物及碳基材料等高分子领域的结构研究进展,展示了XAFS技术在高分子及其相关材料领域的重要作用和分析方法,体现了XAFS技术的优势和特点,并对XAFS技术在高分子及相关材料方面的应用进行了展望.随着同步辐射技术的发展和提高,XAFS技术在高分子领域的应用将会进一步拓展和提升.polymer materials are a class of materials of great importance for their peculiar chemical-physical properties. The basic principles of X-ray absorption fine structure （XAFS） which is promoted by synchrotron radiation, including extended X-ray absorption fine structure （EXAFS） and X-ray absorption near-edge structure （XANES） were introduced. Various XAFS methods were reviewed for applications in studies of polymers and related materials, including usual polymers, organometallic polymers, Pd-droped polymers, ionomers, carbon based materials, etc. These mentioned applications have showed the significance and advantage of XAFS in polymers and related materials field. It is confident that the promotion and growth in XAFS would bring more benefits in scientific research of polymers.

关 键 词：高分子材料 XAFS 原子结构 

分 类 号：O631[理学—高分子化学]