Determination of the Critical Micelle Concentration of Surfactant in Aqueous Solution by Twisted Intramolecular Charge Transfer Probe DMABN - Details

author：

Lin, C. (Lin, C..) ^[1] | Song, L. (Song, L..) ^[2] | Zhao, J. (Zhao, J..) ^[3]

Indexed by：

Scopus

Abstract：

With　p-N,N-dimethylaminobenzonitrile　(DMABN)　as　a　probe,　the　variations　of　the　intensity　of　its　second　fluorescence　emission　(Ia)　and　the　corresponding　characteristic　wavelength　(λa)　with　the　surfactant　concentration　(c),　here　the　examined　surfactants　(C12TABr,　SDS,　C12E23,　and　C12-3-C12·2Br),　were　measured　by　Hitachi　F4500　fluorescence　spectrophotometer.　The　results　showed　that　both　the　break　points　on　the　Ia-c　curve　and　the　minimum　of　the　derivative　variation　corresponding　to　the　λa-c　curve　agreed　very　well　with　the　critical　micelle　concentration　(cmc)　of　the　surfactant　in　aqueous　solution　as　measured　by　surface　tension　technique.　Due　to　strong　aggregation　of　C12-3-C12·2Br　in　aqueous　solution,　the　information　about　loose　micellar　structure　could　be　obtained　by　its　λa-c　curve.　©　2007　Chinese　Chemical　Society　and　College　of　Chemistry　and　Molecular　Engineering,　Peking　University.

Keyword：

Critical micelle concentration; DMABN; Dual fluorescence; Twisted intramolecular charge transfer probe

Community：

[ 1 ] [Lin, C.]Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 2 ] [Song, L.]Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 3 ] [Zhao, J.]Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, 350002, China

Reprint 's Address：

[Zhao, J.]Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, 350002, China

Email：

jxzhao.colloid@fzu.edu.cn

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Source ：

Acta Physico - Chimica Sinica

ISSN： 1872-1508

Year： 2007

Issue： 12

Volume： 23

Page： 1846-1850

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 4

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

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