V. D. Toncheva, R. S. Velichkova, I. M. Panayotov, L. P. Markova
{"title":"9-蒽基甲基六氟磷酸的核磁共振研究。苯乙烯单体的聚合†","authors":"V. D. Toncheva, R. S. Velichkova, I. M. Panayotov, L. P. Markova","doi":"10.1002/polc.5070740118","DOIUrl":null,"url":null,"abstract":"<p>The primary carbenium salt 9-anihranylmethyl hexafluorophosphate is characterized by <sup>1</sup>H- and <sup>13</sup>C-NMR spectroscopy. The results show that in the temperature range −60°-15°C the initiator exists as a classical carbenium ion and a protonated anthracenium ion. At higher temperatures the reactions of self-alkylation and disproportionation proceed, giving bianthracenes, hydroanthracenes, and other dimer forms.</p><p>The polymerization of α-methylstyrene and <i>p</i>-methoxystyrene, initiated by 9-anthranylmethyl hexafluorophosphate, is investigated. The mechanism of initiation, the stereochemical configuration, and the end groups of the polymer chains are determined.</p>","PeriodicalId":16867,"journal":{"name":"Journal of Polymer Science: Polymer Symposia","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/polc.5070740118","citationCount":"0","resultStr":"{\"title\":\"NMR study of 9-anthranylmethyl hexafluorophosphate. Polymerization of styrene monomers†\",\"authors\":\"V. D. Toncheva, R. S. Velichkova, I. M. Panayotov, L. P. Markova\",\"doi\":\"10.1002/polc.5070740118\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The primary carbenium salt 9-anihranylmethyl hexafluorophosphate is characterized by <sup>1</sup>H- and <sup>13</sup>C-NMR spectroscopy. The results show that in the temperature range −60°-15°C the initiator exists as a classical carbenium ion and a protonated anthracenium ion. At higher temperatures the reactions of self-alkylation and disproportionation proceed, giving bianthracenes, hydroanthracenes, and other dimer forms.</p><p>The polymerization of α-methylstyrene and <i>p</i>-methoxystyrene, initiated by 9-anthranylmethyl hexafluorophosphate, is investigated. The mechanism of initiation, the stereochemical configuration, and the end groups of the polymer chains are determined.</p>\",\"PeriodicalId\":16867,\"journal\":{\"name\":\"Journal of Polymer Science: Polymer Symposia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1986-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1002/polc.5070740118\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Polymer Science: Polymer Symposia\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/polc.5070740118\",\"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.5070740118","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
NMR study of 9-anthranylmethyl hexafluorophosphate. Polymerization of styrene monomers†
The primary carbenium salt 9-anihranylmethyl hexafluorophosphate is characterized by 1H- and 13C-NMR spectroscopy. The results show that in the temperature range −60°-15°C the initiator exists as a classical carbenium ion and a protonated anthracenium ion. At higher temperatures the reactions of self-alkylation and disproportionation proceed, giving bianthracenes, hydroanthracenes, and other dimer forms.
The polymerization of α-methylstyrene and p-methoxystyrene, initiated by 9-anthranylmethyl hexafluorophosphate, is investigated. The mechanism of initiation, the stereochemical configuration, and the end groups of the polymer chains are determined.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
