{"title":"分形结构聚合物的介电性能","authors":"É. Dantras, A. Caminade, J. Majoral, C. Lacabanne","doi":"10.1109/ISE.2002.1042947","DOIUrl":null,"url":null,"abstract":"A set of phosphorus-containing dendrimers involving three generations (g = 0, 1 and 2) has been investigated using dynamic dielectric spectroscopy and thermostimulated currents techniques. The dendrimers show a low temperature /spl beta/ mode with an Arrhenius type temperature dependence. Havriliak-Negami parameters of this mode are strongly influenced by the generation. For g = 0 dendrimer, a narrow TSC relaxation mode, with a quasi-Debye behavior has been also found. It has been associated with dipolar relaxation of aldehyde groups. This mode is observed in g = 1 and g = 2 dendrimers, with a mild modification of its characteristics due to interactions with phosphorus/sulfur strong dipoles (P = S groups). An additional metastable mode has been experimentally isolated. It might be due to structural relaxation.","PeriodicalId":331115,"journal":{"name":"Proceedings. 11th International Symposium on Electrets","volume":"21 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dielectric properties of polymers with fractal architecture\",\"authors\":\"É. Dantras, A. Caminade, J. Majoral, C. Lacabanne\",\"doi\":\"10.1109/ISE.2002.1042947\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A set of phosphorus-containing dendrimers involving three generations (g = 0, 1 and 2) has been investigated using dynamic dielectric spectroscopy and thermostimulated currents techniques. The dendrimers show a low temperature /spl beta/ mode with an Arrhenius type temperature dependence. Havriliak-Negami parameters of this mode are strongly influenced by the generation. For g = 0 dendrimer, a narrow TSC relaxation mode, with a quasi-Debye behavior has been also found. It has been associated with dipolar relaxation of aldehyde groups. This mode is observed in g = 1 and g = 2 dendrimers, with a mild modification of its characteristics due to interactions with phosphorus/sulfur strong dipoles (P = S groups). An additional metastable mode has been experimentally isolated. It might be due to structural relaxation.\",\"PeriodicalId\":331115,\"journal\":{\"name\":\"Proceedings. 11th International Symposium on Electrets\",\"volume\":\"21 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-12-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings. 11th International Symposium on Electrets\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISE.2002.1042947\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings. 11th International Symposium on Electrets","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISE.2002.1042947","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Dielectric properties of polymers with fractal architecture
A set of phosphorus-containing dendrimers involving three generations (g = 0, 1 and 2) has been investigated using dynamic dielectric spectroscopy and thermostimulated currents techniques. The dendrimers show a low temperature /spl beta/ mode with an Arrhenius type temperature dependence. Havriliak-Negami parameters of this mode are strongly influenced by the generation. For g = 0 dendrimer, a narrow TSC relaxation mode, with a quasi-Debye behavior has been also found. It has been associated with dipolar relaxation of aldehyde groups. This mode is observed in g = 1 and g = 2 dendrimers, with a mild modification of its characteristics due to interactions with phosphorus/sulfur strong dipoles (P = S groups). An additional metastable mode has been experimentally isolated. It might be due to structural relaxation.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
