کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10557887 | 968932 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectrophotometric studies of anionic dye-cationic surfactant interactions in mixture of cationic and nonionic surfactants
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Spectrophotometric studies of anionic dye-cationic surfactant interactions in mixture of cationic and nonionic surfactants Spectrophotometric studies of anionic dye-cationic surfactant interactions in mixture of cationic and nonionic surfactants](/preview/png/10557887.png)
چکیده انگلیسی
The interaction between an anionic dye C.I. Reactive Orange 16 (RO16) and a cationic surfactant dodecylpyridinium chloride (DPC) in mixtures of DPC and nonionic surfactants poly(oxyethylene)ethers (CmPOEn; m = 12, 16 and 18, n = 4, 10 and 23) are investigated spectrophotometrically in a certain micellar concentration range. The spectrophotometric measurements of dye-surfactant systems are carried out as function of mole fraction of surfactant at four different temperatures. For this reason, a typical system was occurred at 1.0 à 10â2 mol lâ1 for surfactants and at 1.0 à 10â4 mol lâ1 for dye concentrations. The formation of DPC-RO16 complex in the CmPOEn solutions of different mole fractions in its micellar concentration range have been determined and compared to those obtained in the binary mixtures. From the spectrophotometric measurements has been observed that the addition of nonionic surfactant in to the mixture of DPC-RO16, causes a significant increase of the value of absorbance. This increase explains that the stability of DPC-RO16 complex is reduced in the presence of nonionic surfactant micelles. It can be seen from results; in mixed surfactant solutions, there are DPC-CmPOEn and RO16-CmPOEn interactions in addition to DPC-RO16 interaction. Since the solubilizaton of the DPC-RO16 complex has been appeared in the CmPOEn solution, our results support the conclusion that adding CmPOEn influences the hydrophobic-hydrophylic balance of the studied complex. Furthermore effect of the alkyl chain length and the number of poly(oxyethylene) in nonionic surfactant on values of absorbance have been investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 61, Issue 5, March 2005, Pages 961-966
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 61, Issue 5, March 2005, Pages 961-966
نویسندگان
Halide AkbaÅ, ÃiÄdem Kartal,