{"title":"新型四氟苯液晶的铁电性质研究","authors":"Xian–Shan Wang, J. Wen","doi":"10.1109/ISE.1996.578235","DOIUrl":null,"url":null,"abstract":"Plotting polarization versus electric field with sine waveform is used to determine the ferroelectricity of liquid crystals in conjunction with other usual methods as optical polarizing microscope and differential scanning calorimeter. Results show that the liquid crystal with the molecular core structure of tetrafluorobiphenylene has a rather wide temperature range of ferroelectric mesophase SmC*, and 4'-[(s)-2-methylbutoxycarbonyl] phenyl 4-(4'-n-nonyloxy-2, 3, 5, 6-tetrafluorobiphenyl-1-ethynyl) benzoate exhibits the range of about 110/spl deg/C from 60 to 170/spl deg/C, the polarization of 8.9/spl times/10/sup -6/ C/m/sup 2/ and the tilt angle of 9.2 degrees at temperature 10/spl deg/C below curie point.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"16 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Studies of ferroelectric properties of novel liquid crystals with tetrafluorophenylene\",\"authors\":\"Xian–Shan Wang, J. Wen\",\"doi\":\"10.1109/ISE.1996.578235\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Plotting polarization versus electric field with sine waveform is used to determine the ferroelectricity of liquid crystals in conjunction with other usual methods as optical polarizing microscope and differential scanning calorimeter. Results show that the liquid crystal with the molecular core structure of tetrafluorobiphenylene has a rather wide temperature range of ferroelectric mesophase SmC*, and 4'-[(s)-2-methylbutoxycarbonyl] phenyl 4-(4'-n-nonyloxy-2, 3, 5, 6-tetrafluorobiphenyl-1-ethynyl) benzoate exhibits the range of about 110/spl deg/C from 60 to 170/spl deg/C, the polarization of 8.9/spl times/10/sup -6/ C/m/sup 2/ and the tilt angle of 9.2 degrees at temperature 10/spl deg/C below curie point.\",\"PeriodicalId\":425004,\"journal\":{\"name\":\"9th International Symposium on Electrets (ISE 9) Proceedings\",\"volume\":\"16 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-09-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"9th International Symposium on Electrets (ISE 9) Proceedings\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISE.1996.578235\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"9th International Symposium on Electrets (ISE 9) Proceedings","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISE.1996.578235","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Studies of ferroelectric properties of novel liquid crystals with tetrafluorophenylene
Plotting polarization versus electric field with sine waveform is used to determine the ferroelectricity of liquid crystals in conjunction with other usual methods as optical polarizing microscope and differential scanning calorimeter. Results show that the liquid crystal with the molecular core structure of tetrafluorobiphenylene has a rather wide temperature range of ferroelectric mesophase SmC*, and 4'-[(s)-2-methylbutoxycarbonyl] phenyl 4-(4'-n-nonyloxy-2, 3, 5, 6-tetrafluorobiphenyl-1-ethynyl) benzoate exhibits the range of about 110/spl deg/C from 60 to 170/spl deg/C, the polarization of 8.9/spl times/10/sup -6/ C/m/sup 2/ and the tilt angle of 9.2 degrees at temperature 10/spl deg/C below curie point.
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