Characterizing Oligomeric Hydroxyl Silicon Oils by MALDI-TOF MS With the Pyridine-Modified Matrix
Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF) is a powerful technique for analysis of various polymers, but it is still very difficult to characterize silicone oil due to its poor ionization efficiency. In this work, oligomeric hydroxyl silicone oils were s...
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Frontiers Media S.A.
2021
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oai:doaj.org-article:56cdc3335a3a4b0c9f594c914dafd5e92021-11-30T14:04:07ZCharacterizing Oligomeric Hydroxyl Silicon Oils by MALDI-TOF MS With the Pyridine-Modified Matrix2296-264610.3389/fchem.2021.755174https://doaj.org/article/56cdc3335a3a4b0c9f594c914dafd5e92021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fchem.2021.755174/fullhttps://doaj.org/toc/2296-2646Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF) is a powerful technique for analysis of various polymers, but it is still very difficult to characterize silicone oil due to its poor ionization efficiency. In this work, oligomeric hydroxyl silicone oils were successfully characterized by MALDI-TOF, by using pyridine-modified 2,5-dihydroxylbenzoic acid (DHB) as the matrix. Furthermore, the mixed crystal of DHB and hydroxyl silicone oil was analyzed by scanning electron microscopy (SEM) and energy disperse spectroscopy (EDS), and the analytical results verified that modification with pyridine could remarkably improve the solubility of hydroxyl silicone oil in DHB, leading to the enhancement of its ionization efficiency in MALDI. The analysis of the MS spectra of a series of hydroxyl silicone oils indicated that they tended to be ionized by the attachment with Na+, and the average molecular weight and the degree of polymerization were measured for several oligomeric hydroxyl silicon oils.Xiaoxiao ZhangXiaoxiao ZhangYan WangYiqiu HuCheng GuoChenghua LiKezhi JiangFrontiers Media S.A.articlesilicon oilMALDI-TOFcrystal structure of matrixpyridine-modified DHBionization efficiencyChemistryQD1-999ENFrontiers in Chemistry, Vol 9 (2021) |
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silicon oil MALDI-TOF crystal structure of matrix pyridine-modified DHB ionization efficiency Chemistry QD1-999 |
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silicon oil MALDI-TOF crystal structure of matrix pyridine-modified DHB ionization efficiency Chemistry QD1-999 Xiaoxiao Zhang Xiaoxiao Zhang Yan Wang Yiqiu Hu Cheng Guo Chenghua Li Kezhi Jiang Characterizing Oligomeric Hydroxyl Silicon Oils by MALDI-TOF MS With the Pyridine-Modified Matrix |
description |
Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF) is a powerful technique for analysis of various polymers, but it is still very difficult to characterize silicone oil due to its poor ionization efficiency. In this work, oligomeric hydroxyl silicone oils were successfully characterized by MALDI-TOF, by using pyridine-modified 2,5-dihydroxylbenzoic acid (DHB) as the matrix. Furthermore, the mixed crystal of DHB and hydroxyl silicone oil was analyzed by scanning electron microscopy (SEM) and energy disperse spectroscopy (EDS), and the analytical results verified that modification with pyridine could remarkably improve the solubility of hydroxyl silicone oil in DHB, leading to the enhancement of its ionization efficiency in MALDI. The analysis of the MS spectra of a series of hydroxyl silicone oils indicated that they tended to be ionized by the attachment with Na+, and the average molecular weight and the degree of polymerization were measured for several oligomeric hydroxyl silicon oils. |
format |
article |
author |
Xiaoxiao Zhang Xiaoxiao Zhang Yan Wang Yiqiu Hu Cheng Guo Chenghua Li Kezhi Jiang |
author_facet |
Xiaoxiao Zhang Xiaoxiao Zhang Yan Wang Yiqiu Hu Cheng Guo Chenghua Li Kezhi Jiang |
author_sort |
Xiaoxiao Zhang |
title |
Characterizing Oligomeric Hydroxyl Silicon Oils by MALDI-TOF MS With the Pyridine-Modified Matrix |
title_short |
Characterizing Oligomeric Hydroxyl Silicon Oils by MALDI-TOF MS With the Pyridine-Modified Matrix |
title_full |
Characterizing Oligomeric Hydroxyl Silicon Oils by MALDI-TOF MS With the Pyridine-Modified Matrix |
title_fullStr |
Characterizing Oligomeric Hydroxyl Silicon Oils by MALDI-TOF MS With the Pyridine-Modified Matrix |
title_full_unstemmed |
Characterizing Oligomeric Hydroxyl Silicon Oils by MALDI-TOF MS With the Pyridine-Modified Matrix |
title_sort |
characterizing oligomeric hydroxyl silicon oils by maldi-tof ms with the pyridine-modified matrix |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doaj.org/article/56cdc3335a3a4b0c9f594c914dafd5e9 |
work_keys_str_mv |
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