| 基体辅助激光解吸电离飞行时时质谱和热裂解色谱/质谱研究聚酯型聚氨酯链结构 |
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| 引用本文： | 王瑛,刘兰珍,朱善农. 基体辅助激光解吸电离飞行时时质谱和热裂解色谱/质谱研究聚酯型聚氨酯链结构[J]. 分析化学, 2000, 0(10) |
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| 作者姓名： | 王瑛 刘兰珍 朱善农 |
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| 作者单位： | 中国科学院化学研究所分子科学中心!高分子物理开放实验室，北京100080，中国科学院化学研究所分子科学中心!高分子物理开放实验室，北京100080，中国科学院化学研究所分子科学中心!高分子物理开放实验室，北京100080 |
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| 摘 要： | 聚酯型聚氨酯样品用基体辅助激光裂解离子化质谱（ＭＡＬＤＩ－ＴＯＦ／ＭＳ）和热裂解色谱质谱（ＰＹＧＣ／ＭＳ）方法进行了鉴定，ＰＹＧＣ／ＭＳ方法可检出ＰＵ的一些组成单元的化学结构，但ＰＹＧＣＩＭＳ中大多数的峰，无法从常规的标准化合物的质谱数据库中检索到，而ＭＡＬＤＩ－ＭＳ方法，可明确测出ＰＵ试样各种单元的组合、聚合度及ＰＵ长链的序列分布，质量数范围可达2300.
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| 关 键 词： | 聚酯型聚氨酯 热裂解色谱/质谱 基体辅助激光解吸电离飞行时间质谱 |
Study on Chain Structure of Polyester Based Urethane Resing Using Matrix Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry and Pyrolysis-Gas Chromatography/Mass Spectrometry |
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| Wang Ying,Liu Lanzhen,Zhu Shannong. Study on Chain Structure of Polyester Based Urethane Resing Using Matrix Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry and Pyrolysis-Gas Chromatography/Mass Spectrometry[J]. Chinese Journal of Analytical Chemistry, 2000, 0(10) |
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| Authors: | Wang Ying Liu Lanzhen Zhu Shannong |
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| Abstract: | Polyester based urethane resin was studied using pyrolysis gas chromatography-mass spectrometry(PyGC/MS) and matrix assisted laser desorption ionization time of flignt MS (MALDI-TOF/ MS).Information the composition of the resin was found by the pyGC/MS method, however a lot of unknown peaks MS special in the PyGC/MS file can not be identified by searching from the standard compounds MS data ha file. While the microstructure of the polyurethane (PU) sample, including the combination of different components, the degree of polymerization and the long sequence distribution of the PU chain can be determined by the MALDI-TOF/MS method. |
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| Keywords: | Polyester urethane pyrolysis gas chromatography-mass spectrometry matrix assisted laser desorption/ionization time of flight mass spectrometry |
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