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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Autores principales: Xiaoxiao Zhang, Yan Wang, Yiqiu Hu, Cheng Guo, Chenghua Li, Kezhi Jiang
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Lenguaje:EN
Publicado: Frontiers Media S.A. 2021
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Acceso en línea:https://doaj.org/article/56cdc3335a3a4b0c9f594c914dafd5e9
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spelling 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)
institution DOAJ
collection DOAJ
language EN
topic silicon oil
MALDI-TOF
crystal structure of matrix
pyridine-modified DHB
ionization efficiency
Chemistry
QD1-999
spellingShingle 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
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