[Analysis Case] Analysis of Surface Functional Groups of Polymer Materials (Chemical Modification - XPS)

This paper presents a case where a specific functional group was chemically modified using a reagent containing heteroatoms, and the ratio of surface functional groups derived from the introduced heteroatoms was evaluated.

【Analysis Sample】4,4'-Diaminodiphenyl Ether (DADPE), OH-terminated Si wafer 【Analysis Method】XPS; monochromatic AlKα radiation (ULVAC-PHI model PHI5000 VersaProbe II) 【Analysis Results】 1. Evaluation of Amino Groups Focusing on the heteroatom F, the analysis revealed that the proportion of amino groups relative to the carbon from the sample was 19 at%. 2. Evaluation of Silanol Groups Focusing on the heteroatom F, the analysis revealed that the proportion of silanol groups relative to the silicon from the sample was 3 at%. 【Summary】 XPS analysis of chemically modified samples allows for the determination of the proportion of surface functional groups. Additionally, by analyzing the surfaces of samples with different material properties and comparing the proportions of surface functional groups, it is also possible to evaluate the impact of surface functional groups on material properties.

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