{"title":"四元内酰胺阴离子聚合的不寻常动力学","authors":"J. Šebenda, J. Hauer, J. Svetlik","doi":"10.1002/polc.5070740126","DOIUrl":null,"url":null,"abstract":"<p>The anionic polymerization of α,α-disubstituted four-membered lactams (3-hexyl-3-methyl-2-azetidinone, I and 3-butyl-3-methyl-2-azetidinone, II) was found to follow a more complicated kinetics than could be expected. The apparent order of polymerization with respect to the monomer was not constant and increased from zero at the beginning of polymerization to two towards its end. Therefore, it is justified to correlate only the initial rate of polymerization with the concentrations of reactants.</p>","PeriodicalId":16867,"journal":{"name":"Journal of Polymer Science: Polymer Symposia","volume":"74 1","pages":"303-310"},"PeriodicalIF":0.0000,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/polc.5070740126","citationCount":"3","resultStr":"{\"title\":\"An unusual kinetics of anionic polymerization of four-membered lactams\",\"authors\":\"J. Šebenda, J. Hauer, J. Svetlik\",\"doi\":\"10.1002/polc.5070740126\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The anionic polymerization of α,α-disubstituted four-membered lactams (3-hexyl-3-methyl-2-azetidinone, I and 3-butyl-3-methyl-2-azetidinone, II) was found to follow a more complicated kinetics than could be expected. The apparent order of polymerization with respect to the monomer was not constant and increased from zero at the beginning of polymerization to two towards its end. Therefore, it is justified to correlate only the initial rate of polymerization with the concentrations of reactants.</p>\",\"PeriodicalId\":16867,\"journal\":{\"name\":\"Journal of Polymer Science: Polymer Symposia\",\"volume\":\"74 1\",\"pages\":\"303-310\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1986-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1002/polc.5070740126\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Polymer Science: Polymer Symposia\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/polc.5070740126\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Polymer Science: Polymer Symposia","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/polc.5070740126","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An unusual kinetics of anionic polymerization of four-membered lactams
The anionic polymerization of α,α-disubstituted four-membered lactams (3-hexyl-3-methyl-2-azetidinone, I and 3-butyl-3-methyl-2-azetidinone, II) was found to follow a more complicated kinetics than could be expected. The apparent order of polymerization with respect to the monomer was not constant and increased from zero at the beginning of polymerization to two towards its end. Therefore, it is justified to correlate only the initial rate of polymerization with the concentrations of reactants.
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