{"title":"烃类聚合物的现场解吸","authors":"R.P. Lattimer, H.-R. Schulten","doi":"10.1016/0020-7381(83)85094-3","DOIUrl":null,"url":null,"abstract":"<div><p>Field desorption mass spectra have been obtained for several low-molecular weight hydrocarbon polymers—polybutadiene, polyisoprene, polyethylene and polystyrene. The principal oligomer ions corresponded to [M]<sup>+·</sup> in every case, i.e., there was little tendency to form ions via proton attachment. Molecular weight averages (<span><math><mtext>M</mtext></math></span><sub>n</sub> and <span><math><mtext>M</mtext></math></span><sub>w</sub>) derived from FDMS data agree well with values obtained by conventional techniques.</p></div>","PeriodicalId":13998,"journal":{"name":"International Journal of Mass Spectrometry and Ion Physics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1983-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-7381(83)85094-3","citationCount":"54","resultStr":"{\"title\":\"Field desorption of hydrocarbon polymers\",\"authors\":\"R.P. Lattimer, H.-R. Schulten\",\"doi\":\"10.1016/0020-7381(83)85094-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Field desorption mass spectra have been obtained for several low-molecular weight hydrocarbon polymers—polybutadiene, polyisoprene, polyethylene and polystyrene. The principal oligomer ions corresponded to [M]<sup>+·</sup> in every case, i.e., there was little tendency to form ions via proton attachment. Molecular weight averages (<span><math><mtext>M</mtext></math></span><sub>n</sub> and <span><math><mtext>M</mtext></math></span><sub>w</sub>) derived from FDMS data agree well with values obtained by conventional techniques.</p></div>\",\"PeriodicalId\":13998,\"journal\":{\"name\":\"International Journal of Mass Spectrometry and Ion Physics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1983-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0020-7381(83)85094-3\",\"citationCount\":\"54\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Mass Spectrometry and Ion Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0020738183850943\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Mass Spectrometry and Ion Physics","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0020738183850943","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Field desorption mass spectra have been obtained for several low-molecular weight hydrocarbon polymers—polybutadiene, polyisoprene, polyethylene and polystyrene. The principal oligomer ions corresponded to [M]+· in every case, i.e., there was little tendency to form ions via proton attachment. Molecular weight averages (n and w) derived from FDMS data agree well with values obtained by conventional techniques.
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