{"title":"染料标记聚合物剪切溶液中的荧光去极化","authors":"S. Claesson, H. Odani","doi":"10.1039/DF9704900268","DOIUrl":null,"url":null,"abstract":"The micro-Brownian motion of a polymer chain in sheared solutions has been studied by means of fluorescence depolarization. An apparatus for determining the degree of polarization of sheared solutions was designed, and measurements were made on fluorescein in aqueous hydroxyethyl cellulose solutions, both tagged to the polymer chains and freely dispersed. The degree of polarization was independent of rate of shear in the region studied, 0-104 s–1, though the flow viscosity of the solutions showed marked non-Newtonian nature. Similar behaviour was observed for concentrated solutions of dextran and polystyrene.","PeriodicalId":11262,"journal":{"name":"Discussions of The Faraday Society","volume":"6 1","pages":"268-276"},"PeriodicalIF":0.0000,"publicationDate":"1970-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"Fluorescence depolarization in sheared solutions of dye-tagged polymers\",\"authors\":\"S. Claesson, H. Odani\",\"doi\":\"10.1039/DF9704900268\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The micro-Brownian motion of a polymer chain in sheared solutions has been studied by means of fluorescence depolarization. An apparatus for determining the degree of polarization of sheared solutions was designed, and measurements were made on fluorescein in aqueous hydroxyethyl cellulose solutions, both tagged to the polymer chains and freely dispersed. The degree of polarization was independent of rate of shear in the region studied, 0-104 s–1, though the flow viscosity of the solutions showed marked non-Newtonian nature. Similar behaviour was observed for concentrated solutions of dextran and polystyrene.\",\"PeriodicalId\":11262,\"journal\":{\"name\":\"Discussions of The Faraday Society\",\"volume\":\"6 1\",\"pages\":\"268-276\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1970-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Discussions of The Faraday Society\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1039/DF9704900268\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Discussions of The Faraday Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/DF9704900268","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Fluorescence depolarization in sheared solutions of dye-tagged polymers
The micro-Brownian motion of a polymer chain in sheared solutions has been studied by means of fluorescence depolarization. An apparatus for determining the degree of polarization of sheared solutions was designed, and measurements were made on fluorescein in aqueous hydroxyethyl cellulose solutions, both tagged to the polymer chains and freely dispersed. The degree of polarization was independent of rate of shear in the region studied, 0-104 s–1, though the flow viscosity of the solutions showed marked non-Newtonian nature. Similar behaviour was observed for concentrated solutions of dextran and polystyrene.
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