{"title":"Dielectric relaxation of some alcohols in solution","authors":"C. Campbell, J. Crossley , L. Glasser","doi":"10.1016/0001-8716(76)80030-2","DOIUrl":null,"url":null,"abstract":"<div><p>Dielectric relaxation times have been determined by Time Domain Spectroscopy at 20 °C for solutions of 1-propanol, 1-butanol, 1-hexanol, 1-octanol and 1-decanol in cyclohexane and for 1-butanol in benzene and carbon tetrachloride. 1-Butanol and 1-propanol solutions in cyclohexane show maxima in their principal relaxation times τ<sub>1</sub> which shift to higher concentrations and longer relaxation times as the alkanol chain lengthens; for the longer alkanols the relaxation times lengthen progressively with concentration. Curves of the reduced relaxation time τ<sub>1</sub>/η against mole fraction for all the alkanols in cyclohexane lie, however, near a single `master' curve, which rises from small τ<sub>1</sub>/η values for the dilute solutions to a maximum at about 0.4 mole fraction alcohol and then falls to an intermediate value for the pure alkanols.</p></div>","PeriodicalId":100050,"journal":{"name":"Advances in Molecular Relaxation Processes","volume":"9 1","pages":"Pages 63-77"},"PeriodicalIF":0.0000,"publicationDate":"1976-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0001-8716(76)80030-2","citationCount":"26","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Molecular Relaxation Processes","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0001871676800302","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 26
Abstract
Dielectric relaxation times have been determined by Time Domain Spectroscopy at 20 °C for solutions of 1-propanol, 1-butanol, 1-hexanol, 1-octanol and 1-decanol in cyclohexane and for 1-butanol in benzene and carbon tetrachloride. 1-Butanol and 1-propanol solutions in cyclohexane show maxima in their principal relaxation times τ1 which shift to higher concentrations and longer relaxation times as the alkanol chain lengthens; for the longer alkanols the relaxation times lengthen progressively with concentration. Curves of the reduced relaxation time τ1/η against mole fraction for all the alkanols in cyclohexane lie, however, near a single `master' curve, which rises from small τ1/η values for the dilute solutions to a maximum at about 0.4 mole fraction alcohol and then falls to an intermediate value for the pure alkanols.
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